HVAC School is the ever growing online source for real training topics for technicians in the Air-conditioning, Heating and Ventilation Fields. In the podcast, we will share recorded training, tech ride alongs, share challenging diagnostic scenarios. All to help make the industry, your company, and … read more
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In this episode of the HVAC School Podcast, host Bryan Orr speaks with Jennifer Manzo, founder of HVA-Chicks Coalition. Jennifer shares her unique …
In this short podcast episode, Bryan dives into some belt talk, including some bits about pulleys and sheaves. He also shares some belt tensioning …
In this episode of the HVAC School Podcast, host Bryan Orr speaks with Chris Hughes of The Energy Conservatory (TEC) about using the Roomulator card …
In this short podcast, Bryan dives into a gas heating topic: primary & secondary air in combustion.
Primary air is the air and oxygen content …
This podcast episode is a live rebroadcast of a livestream with Craig Migliaccio (AC Service Tech) and Ty Branaman (love2hvac). It focuses on different types of learning and how to make the most out of learning …
In this podcast episode, Bryan has an enjoyable conversation with his wife Leilani about navigating family relationships while building a business. They discuss the challenges and benefits of mixing family and work, …
In this solo podcast, Bryan provides an introduction to heat pumps, explaining the basics of how they work and key considerations in a way that is …
This podcast brought together several women working in the HVAC industry to discuss their experiences and offer advice. The conversation focused on the positives of working in HVAC as a woman, the importance of …
In this short podcast, Bryan explains the history of AWG, or American wire gauge, which is the sizing system we use for conductors in the United States.
Wires weren't standardized before the 18th century (1700s). As …
Don Gillis and Dr. Chuck Allgood from Chemours join the show to discuss their new easy as "1,2,3" branding around the A2L refrigerants R454A, R454B, and R454C. They explain that A2Ls are not actually flammable like …
In this short podcast episode, Bryan tackles the following question: What is DX?
In short, DX stands for "direct expansion," which means that you …
In this podcast, Bryan Orr interviews Jesse Stewart from NAVAC about A2L refrigerants and compatible tools and safety procedures.
They discuss how …
This podcast covers refrigeration technologies' growth and focus on providing safe, high-performing chemicals for HVAC technicians without hazardous …
This live podcast from AHR Expo 2024 discusses the costs of truck rolls for HVAC technicians and how technicians and companies can reduce those …
In this podcast, Bryan chats with Tony Gonzalez of Fieldpiece about their latest innovations for service tools, including the redesigned VCRT, as …
In this short podcast episode, Bryan covers the differences between absolute and gauge pressure, as well as measuring pressure with a micron gauge or …
In this HVAC School podcast, Bryan and Tom Buescher with Copeland discuss dual-fuel heat pump systems as an intermediate step towards more …
In this short podcast episode, Bryan dives into NTC, PTC, and thermocouples. NTC and PTC are two types of thermistors, and all three tools are used …
This podcast episode focuses on practical ways to save energy with grocery store refrigeration systems, with Matthew Taylor from Kalos Services sharing insights from both a technician and business owner perspective. The …
The podcast is a conversation between Ed and Bryan about using the ACCA Residential Plans Examiner Review Form, an ACCA form you probably never heard of, to demonstrate that proper HVAC system design procedures were …
In this HVAC podcast episode, hosts Bryan Orr and Matthew Taylor (refrigeration leader and trainer at Kalos Services) discuss oil management and considerations in supermarket refrigeration systems, with a focus on …
In this podcast, Bryan and Clifton discuss the upcoming transition to A2L refrigerants, like R-32 and R-454B, and what A2L mitigation is going to look like.
These mildly flammable refrigerants will be used in place of …
Bryan and Kevin discuss indoor air quality solutions in terms of healthy air supplements vs. pillars of IAQ, drawing an analogy between IAQ …
In this short episode, Bryan discusses the unique features of hot deck, cold deck systems. These systems have separate heating and cooling components …
In this episode of HVAC School, hosts Bryan Orr and Bert discuss practical tips for preventing callbacks and failed inspections in residential HVAC …
In this short episode, Bryan talks about the situations when permits are not needed to install HVAC/R (or HVAC/R-related) components.
A few codes are universal in residential HVAC, including the International …
In this podcast, Bryan Orr and Bert discuss various aspects of pool heaters, focusing on issues that make them different from typical HVAC systems. …
In this short episode, Bryan explains the fundamentals of capacitance, focusing on the unit of measure: farads, including micro and pico.
Farads are named after scientist Michael Faraday and measure capacitance; one …
Bryan Orr hosted a live podcast discussion all about 90% efficient furnaces with HVAC professionals Ty Branaman, Adam Mufich, and Matthew Bruner. They covered the basics of how 90% furnaces work compared to traditional …
In this short podcast, Bryan breaks down the differences between analog and digital sine waves.
Analog readings deal with an unlimited number of values; they are very precise and can have any number of decimals. As a …
Bryan Orr interviews Tyler Nelson, an HVAC expert with over 20 years of experience as a contractor. They have an in-depth discussion about combustion analysis and why it is becoming increasingly important for HVAC …
In this short podcast, Bryan talks about checking the charge of a heat pump in heat mode. This skill will become more critical as ambient …
Nikki Krueger and Genry Garcia return to the podcast to talk about a recent IAQ & dehumidification case study on a vintage home in Miami. The home was very clean but had a musty odor and VOC concerns. You can read …
Skilled trades entrepreneur Tommy Mello joins the podcast to talk about creating a business where everyone wins: business owners, employees, vendors, AND customers.
Tommy's main motivations in business are …
Refrigeration Mentor Trevor Matthews returns to the podcast to share some of his tips for supermarket rack service. The supermarket refrigeration world is ripe with high-paying opportunities and uses similar skills that …
In this short episode, Bryan covers traps, vents, and drains. He explains some common misconceptions and best practices for fabricating drains, especially in residential and light commercial structures in Florida.
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HAVEN IAQ founder and CEO Kevin Hart returns to the podcast to discuss cracking the home health comfort code, diving into IAQ’s illusory ideals.
Even …
In this short podcast episode, Bryan goes over a few tubing insulation tips. Tubing insulation is also commonly known as Aeroflex, Armaflex, and …
Jim Fultz returns to the podcast to talk about the new HSI module from White-Rodgers, the 50E47U-843. You can learn more about this new universal HSI …
In this short podcast episode, Bryan talks about locked compressors and hard starts. He explains what actually happens when a compressor locks and covers when and how to use hard starts appropriately.
Locked …
Licensed mechanical engineer Tony Amadio joins the podcast to talk about residential exhaust codes and best practices. He also put together a …
Phil Barr and Nathan Orr join the podcast to talk about wiring refrigerated cases in commercial spaces, including convenience stores and supermarkets.
Cases may be medium-temp (or high-temp, in some cases) or low-temp. …
This podcast is a class taught by Bryan: Things to Keep Out of the System. He covers some installation best practices along the way to keep contaminants and non-condensable gases out of the system.
We want to keep air, …
In this short podcast, Bryan talks about air changes per hour, also known as ACH, and what it means in HVAC design and indoor air quality (IAQ) …
Roman Baugh joins the podcast to talk about oil return and the refrigerant charge in VRV systems.
VRV systems—also known as variable refrigerant …
In this short podcast, Bryan talks about oxidation and all the buzz behind “magical air-cleaning oxides” and other similar IAQ products.
Oxidation is the loss of electrons, and reduction is the gain of electrons; oxygen …
In this short podcast, Bryan talks about filtration and IAQ, especially as they relate to virus control. He also answers the age-old question: “Can …
Joey Henderson returns to the podcast to talk about heat pumps and inverters.
The reversing valve, defrost cycles, and auxiliary heat can cause confusion for people who have primarily worked with furnaces or …
Joey Henderson joins the podcast to talk about airflow and how we can get air where it needs to go.
Duct design is one of the subjects that fuel Joey's passion for HVAC. In many cases, people focus too heavily on the …
This podcast episode contains some of the questions and topics from the Business Round Table at the 4th Annual HVACR Training Symposium. Panelists …
In this short podcast, Bryan goes over some information about cap tubes (capillary tubes) and flow facts.
Cap tubes are metering devices; they're long tubes with small diameters, and their flow rates are dictated by the …
Jim Fultz and Jim Hagl from Copeland join the podcast to talk about filter driers and system cleanup. Filter driers come in many types and sizes; …
In this short episode, Bryan goes over the fourth chapter of his new book, Unconformed. The chapter is called "So... What Do You Do?"
Parents always want to be proud of their children, but it seems as though children …
This podcast is based on a Kalos meeting about pipefitting best practices, particularly in commercial refrigeration applications. It begins with a …
In this short episode, Bryan talks about filter driers and their important role in HVAC/R system protection, especially in accordance with Copeland's …
This podcast episode is one of Alex Meaney's HVACR Training Symposium presentations: HVAC Design Backwards, Forwards, and In Between.
Load …
This podcast is the Santa Fe Panel from the 4th Annual HVACR Training Symposium. The panel focused on dehumidification, was moderated by Nikki Krueger, and featured Andy Ask and Ken Gehring.
"Matchmaking" a residence to …
In this short podcast, Bryan talks about where to place the micron gauge during evacuation and how to think about micron gauge positioning.
…
Brett Wetzel joins the podcast to talk about his journey from resi tech to industry-leading refrigeration trainer.
Brett is best known for his educational content, but he is also the manager of technical troubleshooting …
In this short podcast episode, Bryan gets into some oil talk, covering some common refrigerant oil terms and types.
Esterification is the process by …
In this short podcast episode, Bryan talks about using a megohmmeter on a scroll compressor (or "megging" a scroll).
Scroll compressors are among the …
Matt Bruner joins the podcast to talk about what it's really like being an HVAC creative. Matt is a young HVAC business owner who has recently …
In this short podcast episode, Bryan talks about TXVs and their impacts on energy efficiency ratings (EER and SEER).
EER (Energy Efficiency Ratio) is …
Jim Ball from NCI joins the podcast to talk about high-performance maintenance contracts and agreements.
A high-performance maintenance agreement …
This episode of the HVAC School podcast Steve Coscia's symposium presentation: HVAC Soft Skill Training Resources.
Likability is a superpower in any …
Roman Baugh returns to the podcast to talk about the time he installed an A2L system and lived to tell the tale.
Roman used most of his same R-410A …
In this short podcast episode, Bryan talks about motor speed and other basic electrical topics as they relate to motors in HVAC equipment.
In a typical single-phase PSC-type (induction-driven) motor, the speed is …
Trevor Matthews returns to the podcast to talk about growing in productivity and confidence as a tech to avoid feeling stuck in your career. They talk about personal development within your organization and in …
This podcast episode is Alex Meaney's 2023 HVACR Training Symposium session: "The Art of Unteaching."
We may have flawed understandings of HVAC concepts, including the understanding that "heat rises." Our world is …
In this short podcast episode, Bryan talks about compression ratio and efficiency, particularly how floating or fixed suction and head pressure …
This podcast episode is Nikki Krueger (Santa Fe Dehumidifiers) and Bryan's 2023 HVACR Training Symposium session about how we can optimize dehumidification and efficiency to create an HVAC design and humidity utopia.
…
This is the episode for you if you've ever asked, "What the flux?" In this short podcast, Bryan explains the basics of flux in soldering and brazing, …
Steve Rogers from The Energy Conservatory (TEC) returns to the podcast to discuss the impacts of duct leakage on occupant comfort and HVAC system performance.
Duct leakage has more significant negative effects in heat …
Tom Lorenz from Sensi joins the podcast to talk about the launch of the Sensi Touch 2 thermostat. The Sensi Touch 2 smart thermostat is compatible with room sensors, which makes it an efficient and effective thermostat.
Eugene Silberstein from ESCO Group returns to the podcast to discuss why and how to create an internal training program for your HVAC/R company.
HVAC/R has so many niches, and information and practices are always …
In this short podcast, Bryan talks about the times when subcooling is meaningless. It is important to understand subcooling fully before using it as …
Craig M (AC Service Tech) returns to the podcast to talk about solving work-life imbalance, especially for HVAC/R technicians who have children and …
In this short podcast, Bryan explains how rules of thumb (ROT) can cause duct issues. He talks about the role of friction rate in duct design as well …
Craig Migliaccio (AC Service Tech) returns to the podcast to talk about what it means to have the heart of a teacher.
Craig discovered his passion for teaching while instructing apprentices on the job, and he went into …
In this short podcast episode, Bryan explains why saturation can be CONFUSING and clears up some common misconceptions.
Saturation applies to dehumidification and refrigerant inside the system. Generally, saturation is …
Kevin Hart from HAVEN returns to the podcast to talk about ventilation in humid climates and some best practices for working on systems that focus on the V in HVAC. HAVEN focuses on IAQ management with the use of …
Dominick Guarino from NCI joins the podcast to talk about the High-Performance HVAC Summit, an upcoming event hosted by NCI from April 17–20. The National Comfort Institute (NCI) is a training organization that helps …
In this podcast from AHR 2023, Tony Gonzalez from Fieldpiece joins Bryan to talk about training, combustion, and more.
Fieldpiece has a new …
In this podcast from AHR 2023, Brandon Marshall from Chemours and Chris Forth from JCI talk about the future of refrigerants and Opteon XL41 (R-454B).
In this podcast from AHR 2023, Jim Bergmann and Joe Medosch talk about measureQuick and the ways it's EXPLODING with growth and new features. They also talk about heat pumps, electrification, and other hot topics in the …
Genry Garcia returns to the podcast to talk about pressures in the building envelope, namely the infiltration skeletons behind closed doors.
When …
In this episode recorded live at AHR Expo 2023, Nick from INFICON joins Bryan to talk about leak detectors and how we can improve our understanding of them.
Some leak detectors, including the INFICON Stratus, measure …
In this episode recorded live at AHR Expo 2023, Dustin and Jim from Copeland/White-Rodgers join Bryan to talk about the use of heat pumps in cold …
In this episode recorded live at AHR Expo 2023, Matthew Schlegel, the Commercial Product Manager of Ducted Systems from JCI (Johnson Controls) joins …
Chris Mohalley returns to the podcast to talk about troubleshooting the modern ECM (or EC motor) and give diagnostic tips. ECMs are electronically …
Clifton Beck of ESCO Group returns to the podcast to talk about training for the future. He also talks about how he became an educator, what it's like to be a trades educator with ESCO Group, and how educators can …
ECM expert Chris Mohalley joins the podcast to talk about the balance between selecting air filtration and motor performance, also known as "MERV vs. Motors."
As the industry realizes that filtration is more important, …
John Ellis, a business consultant who specializes in IAQ training, joins the podcast to talk about effective filtration, product development, and …
Dr. Allison Bailes from Energy Vanguard joins the podcast to answer the age-old question: do houses need to breathe? He also talks about his new …
David Holt with the National Comfort Institute (NCI) returns to the podcast to talk about high-performance HVAC and what the heck it even is.
…
Ed Janowiak returns to the podcast to talk about setting realistic customer expectations when designing residential HVAC systems across climates, seasons, and load conditions.
Being honest and aggressive is one of the …
Craig Migliaccio, aka AC Service Tech, returns to the podcast to share his knowledge about mini-split install & service. He also talks a bit about his upcoming book, “Inverter Mini-Split Operation and Service …
David Richardson from NCI returns to the podcast to talk about why CO (carbon monoxide) doesn't leak and what it does instead.
CO is a highly …
Jim Fultz with Emerson White-Rodgers returns to the podcast to talk about one HSI furnace control to rule them all, the 50M56X-843 Universal Single …
Yaron Ben Nun from Nostromo Energy joins the podcast to talk about ice banking, a way of using ice to balance energy consumption. Nostromo Energy is an Israel-based company that has recently started working in …
Eric Kaiser and Ty Branaman return to the podcast to talk about why we need to pay technicians and field workers better in the HVAC industry and how small and medium businesses can help current employees.
When the pay …
Dr. Chuck Allgood from Chemours returns to the podcast to do some refrigerant myth-busting.
Many people don’t understand why high-GWP HFCs can impact the atmosphere if the refrigerant is heavier than air. High-GWP HFCs …
Ty Branaman and Eric Kaiser return to the podcast to discuss the good, the bad, and the ugly of trade schools. They cover the opportunities and …
John Pastorello from Refrigeration Technologies returns to the podcast to talk about selecting proper cleaners for various HVAC/R jobs.
From the …
Eric Kaiser and Ty Branaman return to the podcast to talk about the progression from technician to service manager and if a good tech always makes a good service manager. They discuss career paths, differing skills …
Kimberly Llewellyn from METUS joins the podcast to talk about the value system around the trades and why the trades aren’t more respected.
In many …
Eric Kaiser and Ty Branaman return to the podcast to talk about getting more people into the trade. They focus on how the HVAC/R industry could be …
Genry Garcia returns to the HVAC School podcast to talk about what becoming a complete tech really means and entails. He talks about his professional …
In this short podcast in our electrical myths series, Bryan talks about some inductive current myths.
There is a common myth surrounding voltage drop …
Alex Meaney returns to the podcast to explain why it REALLY gets hot upstairs and what we can do about it. He also talks a bit about his new business.
In this short podcast, Bryan busts the common electrical myth that single-phase 240v power is really two-phase power.
When power goes into a structure that runs 240v appliances, we may understand that two 120v sine …
Moe Hirsch joins the podcast to discuss the hydronics side of the industry, particularly focusing on Dan Holohan’s Pumping Away and exciting …
In this short podcast, Bryan busts the myth that hard starts reduce the start current on the run winding of a compressor.
A single-phase motor’s main winding is the run winding; it has a lower resistance and a higher …
Andy Holt joins the podcast to talk about what it means to be a 24-Hour Technician. We talk about what it means to be HVAC/R technicians AND deal …
Jim Bergmann returns to the podcast to talk about furnace commissioning procedures and the development of measureQuick 2.0.
MeasureQuick 2.0 has been …
Mike Klokus and Jeff Crable walk us through Kalos Services' light commercial PM process.
First, we verify that everyone is clear on the agreement. Then, we start the PM with a thorough visual inspection, taking copious …
In this short podcast, Bryan covers a common electrical myth about wire length and its relationship with the National Electrical Code. The NEC is concerned with safety—protecting buildings and people—but less so with …
Trevor Matthews, the founder of Refrigeration Mentor, returns to the podcast to talk about why CO2 matters in commercial refrigeration and even HVAC applications.
CO2 (R-744) has entered the residential HVAC sphere in …
This podcast is Bryan’s full-length electrical basics class for the Kalos technicians. He covers electrical theory and circuit basics.
Volts, …
In this short podcast, Bryan debunks the myth that electricity only takes the path of least resistance.
It is true that more current will typically take paths of lower resistance; it’s much easier for more electrons to …
Nikki Krueger from Santa Fe Dehumidifiers returns to the podcast to talk about dehumidification equipment and strategies in the shoulder seasons …
In this short podcast episode, Bryan gives some quick tips for time management. You can save a lot of time by prioritizing what really matters and delegating tasks.
One of the simplest but most effective ways to manage …
Eric Kaiser returns to the podcast to talk about how to become a better mentor. He explains the topic from the perspective of a mentor and a mentee.
The goal of mentorship is to pass your knowledge on to someone else. …
Eric Kaiser joins the HVAC School podcast to talk about HVAC measurement types and the benefits of taking each one. He also talks about point …
Genry Garcia joins the podcast to give an intro to ASHRAE Standard 62.2. He and Bryan also share a nice rant about accountability in HVAC design. Standard 62.2 is the ventilation standard for low-rise residential …
RACT manual co-author Eugene Silberstein joins the podcast to talk about the titular topic of his book, Pressure Enthalpy Without Tears.
Pressure …
In this short podcast, Bryan talks about THOR, total heat of rejection. He explains what it is and why we should care about it when working on HVAC/R …
Matteo Giovanetti from Micro-Air joins the HVAC School podcast to talk about the differences between a hard start and an EasyStart.
Micro-Air’s …
In this short podcast, Bryan explains what the heat of compression is and why we should care about it as HVAC/R professionals.
More heat is rejected …
Ed Janowiak joins the podcast to introduce us to ACCA Manual T.
Compared to other manuals, Manual T is one of the least-considered ACCA manuals. However, it’s the manual that advises us on how not to blow high-velocity …
In this short podcast, Bryan explains what the net refrigeration effect (NRE) is and how it affects HVAC systems.
The net refrigeration effect (NRE) is what happens in the evaporator coil. The evaporator is the heat …
Eric Kaiser returns to the podcast to talk about how we can use systems thinking to approach gas appliances and combustion in HVAC installation and service.
Gas lines can be made of a few different materials, including …
Some admins from the HVAC School Facebook group join the podcast to discuss the art of moderating a successful community. Bryan is joined by Eric …
Eric Kaiser returns to the podcast to discuss high-voltage wiring, low-voltage wiring, and condensate assemblies as they relate to systems thinking.
…
Eric Kaiser returns to the podcast to talk about how copper, piping, and line sets play into systems thinking.
Nowadays, we have to think about POE and PVE oil, and we need to design line sets in a way that assists with …
Eric Kaiser joins the podcast to talk about systems thinking in HVAC. Systems thinking allows us to solve problems and address customers’ comfort …
Nathan Orr joins Bryan to talk about some logical fallacies, namely the false cause and strawman. They explain how those fallacies show up in the …
Refrigeration Mentor founder Trevor Matthews returns to the HVAC School podcast to talk about personal development and training, including tips for …
In this short podcast episode, Bryan shares some of his top threaded connection tips. He also clears up some confusion about connection types.
Threaded connections include flare and compression-type fittings (like …
Bryan explains how parents and educators can succeed at giving kids the tools for any job they want. This podcast was originally a presentation at …
In this short podcast episode, Bryan talks about ERV and HRV technologies, including their appropriate applications and limitations.
HRVs are heat …
Rajan Rajendran and Jennifer Butsch from Emerson join the podcast to discuss the Helix and some refrigerant changes that are coming. Jennifer is the …
In this short podcast episode, Bryan talks about pilot controls. He talks about the old-school ignition systems on gas appliances and some similar …
Bryan and Robert Orr continue their discussion about ethics by talking about what it means to have grit and discipline in business. They talk about what those characteristics look like in business and in life, and they …
Bryan and Robert Orr talk about ethics and what it means to have integrity when running a family business. Robert is a lifelong tradesman who is a licensed construction contractor, and he has overseen the construction …
In this short podcast, Bryan talks about distributors and external equalizers and why we need to use them together.
When older Carrier heat pumps …
In this short podcast episode, Bryan talks even more about sine waves and center-tapped transformers.
Power is generated at the power plant when an energy source (such as steam) is used to drive a drive shaft. The …
Bryan describes the tricky concept of power factor and why we should care about it. He also compares power factor to a beer mug to make the topic …
Bryan lays down some motor speed facts in about 10 minutes in this short podcast episode.
We can figure out how quickly a single-phase motor (PSC) will run if we understand how many cycles it will make per second. In …
Neil Comparetto and John Semmelhack of the Comfort Squad join Bryan to discuss high-quality value design in a high-performance home. They explain how they design HVAC systems (heat pumps) for low-load homes in ways that …
Lacey Dietz with METUS and Scott Arnold with Rycor HVAC join the podcast to talk about how the industry can start putting contractor success first. …
Sam Myers with Retrotec talks to Bryan about pressures in the home and why they matter for HVAC solutions at IBS 2022.
Technicians focus a lot on …
This podcast is a class that Bryan taught for BTrained in Birmingham, AL. He covers troubleshooting, installation, and commissioning best practices with a focus on the fundamentals.
To be a good troubleshooter, you must …
Bryan has a bit of an industry nerd out with Ross Trethewey from “This Old House” and TE2 Engineering at IBS 2022 (the International Builders’ Show). Ross’s education and career have focused on mechanical engineering, …
In this podcast, Bryan goes through the entire process of replacing a compressor step-by-step. This process is what the Kalos team uses to replace a failed compressor and make sure it doesn’t fail again.
Before …
In this short podcast, Bryan explains what it means to top off, drop in, and retrofit refrigerants. He describes the differences between those three things to dispel some of the confusion they may cause.
Topping off a …
Trevor Matthews, the founder of Refrigeration Mentor, is back on the podcast. This time, he and Bryan talk about the value of networking for HVAC techs as the conference season comes to a close.
Many trade events are …
David Richardson of NCI joins the HVAC School podcast to talk about how we can implement educational growth effectively throughout the trade. NCI …
Corbett Lunsford of Home Diagnosis joins Kaleb to record a podcast about comfort investigation on TV. The two of them discuss how comfort investigation works on TV shows, what Home Diagnosis hopes to accomplish, and …
Chris Micallef, the CEO of Falkonair, joins Nathan Orr at AHR to discuss energy savings for three-phase equipment. They also explore some of …
Alex and Nicole of Faraday join Kaleb Saleeby and Ty Branaman to talk about new educational formats and options in the HVAC industry. Alex is the …
Ashley (aka hvac_ash) joins the podcast to talk about how HVAC fits into social media, AHR 2022, and AmRad capacitors. Ashley works with Global the Source on the sales and distribution side of the business.
Becoming an …
Bill Spohn joins Eric Kaiser and Kaleb Saleeby at AHR 2022 to talk about his experiences designing and living in a home with NetZero HVAC.
NetZero HVAC refers to system design with tight coordination with the house to …
Collin Olson, the staff physicist of The Energy Conservatory (TEC), joins Eric Kaiser at AHR 2022 to talk a bit about data logging.
Data logging …
Mark Tozzi from Carrier comes on the HVAC School podcast to talk about unique HVAC incentives in K-12 schools.
When schools closed down during …
Chris Forth, the VP of regulatory codes and environmental affairs at Johnson Controls, joins Bryan for a live podcast at AHR 2022. This time, they …
Kevin Hart, the CEO of HAVEN, joins Kaleb Saleeby live from AHR 2022 to discuss how we can control IAQ with central air monitors and controllers. …
Jacques Beaudry-Losique, the CEO of Enginuity Power Systems, joins Nathan Orr live at AHR 2022. Enginuity manufactures energy-efficient engines that produce more power than traditional engines and recover waste heat to …
Rick Nadeau, Director of Training and Technical Services at Samsung, talks with Kaleb Saleeby live from AHR. He explains some of the exciting …
Steve Rogers from The Energy Conservatory (TEC) joins Eric Kaiser to talk about airflow measurement at AHR 2022. Steve is an expert in fluid dynamics and flow measurement, and he is a trainer in addition to being the …
Brett Wetzel and Kevin Compass from the Advanced Refrigeration Podcast join us to discuss commercial rack refrigeration and identify components.
In supermarket racks, we typically have anywhere from 2-5 compressors on a …
Jim Fultz from Emerson joins Eric Kaiser at AHR to share his knowledge of universal boards and controls. Jim’s work focuses on electronic controls …
In this short podcast from AHR 2022, Leilani Orr and Eric Kaiser talk with the president and CEO of Malco Tools, Rich Benninghoff. Rich discusses …
Jason Obrzut joins Nathan Orr with the HVAC School podcast live from AHR. In this episode, they discuss A2L refrigerants and upcoming regulations. …
David Holt with NCI returns to the podcast to discuss the evolution of HVAC training; we cover the past, present, and the possible future of training …
Russ King joins us for a short podcast episode about using 3D load and energy calculations with duct design. Russ has developed the Kwik Model 3D …
In this short podcast episode, Clifton Beck joins us to talk about Bluon’s free tech support and resources available to technicians and installers.
Clifton has been very in touch with the HVAC technician community since …
Genry Garcia returns to the podcast to talk about blower doors and why ACH50 may needlessly complicate efforts to tighten a building envelope.
A …
Brandon Marshall, Chemours’s North American marketing manager for thermal and specialized solutions, joins the podcast to discuss refrigerant changes …
Chuck Allgood with Chemours joins the podcast to cover the history of refrigerants and discuss what the future might hold.
In the late 1800s, before …
Andy Holt joins the podcast to discuss the ever-relevant topic of overcoming conflict at work.
Some people end up in conflicts often, so Andy …
Matthew and Nick Wavra join the podcast to discuss everything that goes into job estimation in commercial HVAC. Nick has a lot of fieldwork and project management experience, and Matthew has marketing, software, and …
In this short podcast episode, Bryan goes over the basic gas furnace sequence of operations. There are a few variations, but the sequence of operations tends to stay consistent across most furnace types.
First, a W call …
Trevor Matthews, the founder of Refrigeration Mentor, returns to the podcast to talk about starting up an internal training program for an HVAC/R company.
In some cases, the best lead technicians don’t want to be head …
In this short podcast, Bryan explains the basics of flame sensing, also known as flame rectification.
Flame sensing/rectification is a form of proving flame. When you can’t prove flame, your furnace might be dumping …
This podcast episode is a throwback to one of Bryan’s first small business podcasts. In this old episode, Australian electrician and businessman …
In this short podcast episode, Bryan covers the differences between defrost termination and failsafe. He also covers the basics of defrost in refrigeration applications.
In medium-temp applications (also called …
This podcast episode is a throwback to one of Bryan’s first podcasts about small businesses. Cesar Abeid, former VP of construction camera company Remontech, joined this podcast to discuss the basics of project …
Bryan discusses impostor syndrome, what it is, and how it may actually be useful for us.
When we feel that we’re frauds and that others wouldn’t like …
Amrit Robbins of Axiom comes on the podcast to discuss how we can use data science to transform grocery and cold storage.
Axiom Cloud uses cloud …
In this short podcast, Bryan goes over the basics of superheat and explains why it matters to us.
Superheat is the temperature increase above a substance’s saturation temperature or boiling point. When a substance is …
In this podcast episode, Bryan and Eric Mele talk about sight glasses, the significance of subcooling in refrigeration, and liquid quality.
While we …
In this short podcast, Bryan explains the basics of repairing aluminum, such as on coils or tubing.
Repairing aluminum can save lots of time on mission-critical calls and can help stop refrigerant leaks that lead to …
In this short podcast, Bryan goes over energy transfer and heat, specifically specific heat.
BTUs per ton is a common measurement; a BTU (British thermal unit) is the amount of heat it takes to raise the temperature of …
In this podcast, Steve Rogers from The Energy Conservatory explains some pro tips for pressure measurement.
There are three common types of pressure …
Trevor Matthews from Refrigeration Mentor comes on the podcast to talk about Copeland reciprocating CS compressors. He and Bryan cover Bulletin …
In this short podcast episode, Bryan explains the science behind adiabatic cooling. Adiabatic cooling occurs in specific HVAC/R applications and in …
In this short podcast episode, Bryan shares his top tips for fighting boredom at work. You can use these tips to help you get out of a rut if you don’t feel productive or get bored easily.
The first tip for fighting …
In this podcast episode, Bryan goes through the addendum to the book Review of Vacuum for Service Engineers. He and Jim Bergmann had the honor of revising the latest edition in 2020. You can get the latest edition of …
In today’s short podcast, Bryan discusses electric heat, how we use it in our work, and what it does.
Also called heat strips or heat elements, electric heat is a supplemental heat source that we usually see on heat …
Trevor Matthews comes on the podcast to discuss his newest project, Refrigeration Mentor. Refrigeration Mentor uses Trevor’s experience as a trainer and field technician to guide others in their careers.
Trevor’s goal …
In this podcast, Ben from HAVEN IAQ, Kaleb, and Bryan discuss how to control indoor air quality and take effective, meaningful, accurate measurements.
Ryan Gorman comes on the podcast to discuss the differences between a college education and early career opportunities in the skilled trades.
Many …
Jason Obrzut comes on the podcast to discuss A2L refrigerant facts. Jason is a member of AHRI’s Safe Refrigerant Transition Task Force and author of the RACT manual.
ASHRAE designates refrigerants into categories based …
In today’s podcast, Bryan and some Kalos employees discuss how to deal with difficult bosses and coworkers in HVAC/R work.
Whether your coworkers …
In today’s podcast, Ed Janowiak comes onto the podcast to talk about the Air Conditioning Contractors of America manuals. Ed started off in the field and has recently become the new Manager of Design Education at ACCA. …
In today’s podcast, Bryan and Jesse talk about how technicians can have conversations about finances and money in the HVAC business.
The first step …
In today’s short podcast, Bryan explains the differences between sleeve and ball bearings. Techs often make some avoidable mistakes because they either don’t know the difference between the two or don’t notice the …
In today’s podcast, Trevor Matthews from Emerson talks about horizontal scroll compressors. Throughout the podcast, we refer to Bulletin AE4-1338 …
In today’s short podcast, Bryan discusses buck-boost (auto) transformers and what they do.
Autotransformers are not automatic; the “auto” prefix comes from the fact that autotransformers only have one inductive winding. …
In today’s podcast, John Ellis joins Bryan to talk about indoor air quality (IAQ). He also explains the ideal process for providing IAQ solutions. …
In today’s podcast, Scott Krasman from TZOA, Andrew Greaves, and Kaleb Saleeby join Bryan for a conversation about mental health in the trades. We have a greater awareness of mental health than we ever did before, and …
In today’s podcast, Jim Bergmann talks about troubleshooting the entire system. He takes a holistic approach to the art of troubleshooting, NOT just …
In today’s podcast, Steven Rogers joins Bryan to talk about measuring total system airflow.
Fluid measurement is NOT restricted to liquids; a fluid is anything that flows, including liquids and gases. In HVAC, we deal …
In today’s short podcast, Bryan explains how growth happens in an HVAC/R career. He also gives tips to get “unstuck” if you feel like you aren’t moving forward.
You won’t move forward if you haven’t set a goal to move …
In today’s podcast, Bryan and a team of Mitsubishi Electric Trane HVAC US (METUS) managers (Mike Schaefer, Charles Miltiades, and Sly Grimm) discuss …
In today’s short podcast, Bryan discusses the key factors for system performance WITHOUT doing a deep dive into system commissioning. “Performance” refers to system efficiency, capacity, air filtration/cleanliness, …
In today’s podcast, Trevor and Bryan discuss Copeland Scroll Compressor Multiples for Air Conditioning. “Multiples” refer to equipment setups with …
In today’s short podcast, Bryan clears up the differences between markup and profit margins in HVAC businesses.
The number one mistake that people make in business is confusing markup and gross margin. For example, you …
In today’s podcast, Eric Mele and Bryan explain the planning, layout, and execution of HVAC projects. They mostly cover commercial ductwork but also touch on piping and some residential projects.
Planning
The first step …
In today’s short podcast, Bryan explores the differences between startup and commissioning.
Startups typically involve going in during the …
In today’s podcast, Eric Kaiser and Bryan talk about mentorship in the HVAC industry. They discuss what it means to be a good mentor, how to find a good mentor, and what it means to be mentored.
Mentorship is an …
In today’s podcast, Bryan explores the upsides of choosing a career in the skilled trades instead of going to college. He also covers ways to prepare …
In today’s short podcast, Bryan explores triple evacuation. Many people believe that we don’t like triple evac, but that’s simply NOT true. We’re …
In today’s podcast, Bryan explains how he teaches physics. He believes that teaching physics is about continuously building a mental model, and he covers the methods and mindsets that facilitate that learning style.
…
In today’s short podcast, Bryan explores the dangers of cold tanks during refrigerant recovery.
Whenever you have a recovery tank, you only want to …
In today’s podcast, Nikki and Bryan discuss dehumidification. They cover the relationship between cooling and dehumidification, humidity control, and …
In today’s podcast, Trevor and Bryan discuss how to troubleshoot thermostatic expansion valves (TXVs/TEVs). They also dive into the various types, applications, and components of TXVs.
TXVs are metering devices that …
In this short podcast episode, Bryan discusses push-pull recovery, how it works, and what we need to know about it.
Push-pull recovery is a somewhat …
In this short podcast episode, Bryan goes over one of his most valuable tips for pulling a vacuum on a small system.
It can be very difficult to pull …
In this podcast episode, Bryan and Eric Mele explain how HVACR technicians can END callbacks with a few best practices.
Rushing through calls will often lead to callbacks. One of the most common mistakes techs make is …
In this podcast episode, Bryan and Eric Mele discuss the diagnosis and prevention of compressor overheating in HVAC and refrigeration.
The main …
In this short podcast episode, Bryan and Eric Mele talk about re-tapping transformers for single-phase equipment in 208v applications.
Most single-phase equipment can work for 230v or 208v, meaning that they can operate …
In this podcast episode, Ben Reed from TZOA, a disruptive air technology brand, joins us to discuss the indoor air quality map and compass.
We spend …
In this podcast episode, Bryan and Trevor Matthews of Emerson Canada discuss the Copeland 2-stage ZPS scroll compressors. Please join us by following …
In this podcast episode, Bryan, Trevor Matthews, and Jim Dick of Emerson talk about the screw compressor and how it works. This time, they focus on the Vilter single-screw compressors.
Vilter is an industrial compressor …
In this short podcast episode, Bryan talks about condensation and how HVAC technicians can solve condensation-related problems. He also discusses …
In this podcast episode, Bryan and Chris Mohalley of Regal Beloit discuss the different types of ECM. They also cover applications where you can expect to find ECMs.
In the HVAC industry, we typically use three types of …
In this podcast episode, Bryan and Eric Kaiser discuss the right and wrong way to do HVAC/R jobs and approach HVAC/R work.
Breaking things down into "right" and "wrong" categories is a rather simple way to approach a …
In this podcast episode, Bryan and Chris Mohalley from Regal Beloit discuss EC motors. They also describe ECM applications and how those motors work.
EC motors (ECMs or "ECM motors") are electronically commutated …
In this short podcast episode, Bryan compares strategies for increasing the subcooling, including stacking liquid and mechanical subcooling.
…
In this podcast episode, Bryan, Chad, John, and Allison discuss proper design for ductless and ducted HVAC systems, especially mini-splits. They also discuss potential future improvements to equipment and duct designs.
…
In this short podcast episode, Bryan explains what atmospheric pressure really is, pressure units and conversions, and why those are matter.
Atmospheric pressure is the weight of the air around us pushing down on us. We …
In this podcast episode, Bryan and Trevor Matthews discuss compressor short cycling. They discuss how to diagnose and prevent that issue. Trevor and …
In this podcast episode, Bryan and Craig Migliaccio (AC Service Tech) discuss some HVACR recovery tips and best practices.
When you select a recovery tank, you need to know which refrigerant is in the tank. So, it's a …
In this episode, Bryan and Craig Migliaccio (AC Service Tech) talk about some best practices you can use while swaging and flaring copper.
There are a few different ways you can flare copper. Craig likes using a round …
In this podcast episode, Bryan and Jim Fultz discuss the White-Rodgers SureSwitch and determine whether contactors are obsolete or not.
Contactors …
In this episode, Bryan and Craig Migliaccio (AC Service Tech) discuss all the ways that nitrogen can make your job easier.
Nitrogen is an inert gas that we can use for purging refrigerant lines and completing scale-free …
In this podcast episode, Bryan and Craig Migliaccio, AC Service Tech, talk about ultrasonic leak detection. They discuss its effectiveness and if …
In this podcast episode, Jim Fultz with White-Rodgers joins us to discuss universal defrost controls. He also explains when and why you might use …
In this short podcast episode, Bryan and Craig Migliaccio discuss why you maybe don't want to buy new tools.
Whenever you get new tools, you have to …
In this podcast episode, we find out how Craig Migliaccio became "AC Service Tech." He makes educational materials and has even written a book. You can check out his website HERE and his YouTube channel, AC Service …
In this short podcast episode, Bryan and Craig Migliaccio discuss the skills and knowledge you should have to start in the HVAC industry.
Of course, …
In this podcast episode, Bryan and Trevor Matthews of Emerson Canada discuss strategies for controlling liquid refrigerant in A/C and refrigeration …
In this short podcast episode, Bryan talks about the TXV power element or power head. He explains what it does and why it's important.
A TXV power element threads onto the top of the valve, and it's where the sensing …
In this episode, Bryan and Alex Meaney talk about value engineering. They discuss what it means to value engineer better when it comes to construction projects.
Value engineering is about finding ways to reduce the …
In this short podcast episode, Bryan talks about the placement of the TXV sensing bulb. He also explains how it affects the opening force on the TXV.
In this podcast episode, Bryan, Erich Vinson, and Anthony Marino talk about dealing with difficult customers in the HVAC industry.
When working with …
In this short podcast episode, Bryan explains how hydrostatic pressure can build up in refrigerant cylinders and present a hazard to technicians.
Your refrigerant cylinders have tare weight and water capacity values …
In this podcast episode, Bryan, Trevor Matthews, and Jim Dick from Emerson give us all an introduction to industrial refrigeration. Jim works with contractors to provide tech support. He also does the startup and …
In this short podcast episode, Bryan talks about the strategies we can use to prevent refrigerant migration during the off cycle.
We often see refrigerant migration when the compressor is lower than the evaporator, …
In this podcast episode, Eric Mele joins Bryan for some weird transformer talk. They discuss corner-tapped transformers and some thought experiments.
We hadn't been able to get our heads around corner-grounded …
In this short podcast episode, Bryan compares internal and externally equalized valves. He also covers how forces act upon the TXV.
Equalization does not happen on the off cycle. When we talk about equalization, we are …
In this podcast episode, Bryan talks with Bill Spohn about his most recent project, SpohnHome. SpohnHome explores Bill's journey in custom home performance.
Projects are complicated because so many trades work together …
In this short podcast episode, Bryan talks about some tips you can use when working with a multi-position service valve.
A service valve will have a …
In this podcast episode, Bryan and Trevor Matthews from Emerson talk through scroll compressors in commercial refrigeration equipment.
Scroll …
In this episode, Bryan and Bert talk about soft skills. They also discuss why soft skills are important in highly technical trades.
Bert's class defined "soft skills" as communication skills; these can be verbal but may …
In this podcast episode, Bryan and Jim Bergmann talk about gas furnace diagnosis and inspection. They cover the ins and outs of furnace assessment.
A gas furnace diagnosis requires a few important measurements, but a …
In this short podcast episode, Bryan talks about the differences between pitot tubes and static pressure probes. He also explains how each one works.
People often mix up static pressure probes and pitot tubes. A pitot …
In this podcast episode, Bryan and Nathan discuss balancing evaporators in a multi-coil circuit. They specifically focus on using the TXV to do so.
…
In this short podcast episode, Bryan discusses the difference between mass flow and volume flow when referring to HVAC equipment processes.
When you …
In this episode, Bryan and Sam discuss freezing evaporator coils. They explain why frozen coils happen and how to address them.
When the coil's surface temperature drops below freezing (32 degrees), the moisture in the …
Mike Klokus and Corey Cruz from Kalos come on the podcast to talk about drain cleaning. They discuss their tips and some best practices.
Approximately 50% of the calls in the light commercial division have to do with …
In this short podcast episode, Bryan talks about the differences between single-phase and two-phase refrigeration. This particular episode is about …
In this episode, Bryan talks with Peter Capuciati and Bryan Johnson from Bluon. They discuss how refrigerant regulations keep changing and how …
In this short podcast episode, Bryan talks about the differences between single-phase and two-phase refrigeration. This particular episode is about …
Don Gillis joins us again to talk more about common types of CO2 systems and how they differ
In this episode, we are joined by three people who know a lot about heat pumps and cold weather. We also cover everything from the way technologies …
Trevor Matthews is back and dropping more compressor knowledge on us. This time, he talks about demand cooling and liquid and vapor injection.
In …
Don Gillis with Emerson joins us on the podcast to teach us the basics of CO2 as a refrigerant. He explains how it works and its applications.
Carbon …
Sam Myers of Retrotec joins Bryan and Kaleb on the podcast to discuss building performance. He also answers some of our listeners' questions.
Checking airflow is important for building science as well as HVAC. However, …
The great Ed Janowiak (Jon-Oh-Wok) joins us to talk about what correct airflow really looks like. He also explains how to design for it appropriately.
The ACCA design series (Manuals J, S, and D) all go hand in hand to …
Have you ever heard a compressor that keeps changing in sound as it runs? Trevor with Emerson tells us more about what that is all about and how the digital compressor operates.
Joe and Eric join us, and we have a general conversation about small self-contained refrigeration units, including residential and commercial. Small refrigeration includes self-contained reach-ins and small walk-ins. …
Kaleb, Joe, and Eric join us again to discuss some myths about single-pole contactors. We also cover some weird crankcase heater wiring …
Trevor Matthews with Emerson Canada comes on the podcast once again to talk about electronic expansion valves (also known as EEVs). He explains how they work, what they do, and how to diagnose them.
Trevor compares …
Trevor Matthews from Emerson Canada joins us on the HVAC School podcast again to talk about CoreSense by Emerson.
Each CoreSense module has the …
Alex Meaney from MiTek/Wrightsoft joins us again because he’s an awesome trainer and knows a thing or two about how to more out of online education for the trades.
During the COVID-19 pandemic, we've seen a dramatic …
Our good friend Trevor Matthews from Emerson Canada joins us to talk about compressors, mostly preventing compressor failure and troubleshooting issues.
Whenever we're installing or servicing a compressor, we need to …
In this short podcast episode, Bryan discusses the importance of suction line temperature and what it can tell you about an HVAC system.
There are two main places to take your suction temperature: at the evaporator …
In this podcast episode, Neil Comparetto from Comparetto Comfort Solutions joins Bryan and Kaleb to discuss some duct installation best practices he …
In this short podcast episode, Bryan explains what happens to a compressor when it's overheating. He also covers possible causes and troubleshooting strategies.
One of the Kalos techs came across an overheating …
In this podcast episode, Kaleb, Joe, Eric, and Bryan answer some troubleshooting and commissioning questions from Facebook.
Whether we're talking about troubleshooting, commissioning, or any other HVAC/R task, the best …
In this podcast episode, Ty Newell from Build Equinox comes on to discuss the CERV2 and how it embodies "advanced fresh air." The CERV2 is the second-generation version of the CERV.
A basic ERV allows for discharge air …
Our main man, Bill Spohn, joins us again to talk specifically about combustion. He also explains how to select and properly utilize a combustion analyzer.
It's critical to do combustion analysis when you service …
In this short podcast, Bryan shares some of his advice for people looking to get into the trades by starting an HVAC/R career.
When you step into the HVAC/R trade, you must remember that you'll acquire a mix of skills …
Jaden Lane joins us to discuss some best practices when using an air flow hood. She also explains how the Dwyer Smart is innovating in the hood space.
Russ King joins us to discuss simplifying duct design for residential contractors. We focus on using 3D software for duct modeling.
While computers …
Bill Spohn with TruTech Tools joins us to talk about why being “approximately correct” is better than being “exactly wrong” when it comes to test …
Bernadette Shahin of Aeroqual joins Bryan and Kaleb as they all dig very deep into indoor air quality (IAQ) sensors and instruments. They also cover the certainty and uncertainty of measurements.
Reference method …
Jordan Cummings is back to discuss some of the most important points in the proper installation of VRF and VRV systems. We especially cover piping best practices.
When it comes to piping, the biggest concerns on VRF and …
Bryan and Eric Mele have a relaxed conversation on time management on the job. They also explain how to manage time in life as a whole.
Some people …
In this short podcast episode, Bryan explains what suction line traps and inverted traps are. He also covers the purposes they serve.
It's a bit hard to find literature on suction line traps, so it's always best to read …
In this short podcast episode, Bryan explains how you can prevent and overcome price objections in your HVAC business.
You can prevent price objections by avoiding the "budget" reputation. If your company establishes …
In this short podcast, Bryan explains why latent capacity is prone to disappearing. He also explains what actually happens when the latent capacity drops.
When you measure enthalpy split across the coil, you'll learn …
In this podcast, Jeremy Smith joins us to discuss demand cooling in low-temperature applications that use R-22 refrigerant.
R-22 is NOT an ideal …
Bryan and Kaleb cover the basics of low-voltage electrical applications. They focus on the practical stuff, not just the theory that confuses techs.
…
In this short podcast, Bryan talks about the impacts of compression and airflow changes. He also discusses some of the ramifications of those changes.
In order for us to energize the second stage of a compressor, we …
In this podcast episode, we ONCE AGAIN talk about superheat and subcooling. This episode is a recap to help people who struggle with the concept.
…
In this psychrometric basics podcast, Bryan and Kaleb talk about the properties of air. They also discuss dry-bulb, wet-bulb, dew point, and …
Many contractors make a huge pricing mistake: confusing markup with margin. The distinction between those two things can be the difference between being profitable and losing it all.
If you want to mark up something …
In this podcast, Ron Saunders from Fresh-Aire UV comes on and answers questions about UVC. He clears up misconceptions and pulls no punches. …
In this free-flowing conversation, the Trethewey family talks about growing up with This Old House, what the show is like behind the scenes, what …
Two of the great air and infiltration expert minds of our time, Gary Nelson and Steve Rogers from TEC (The Energy Conservatory), come on the podcast to talk about blower doors. They also discuss blower door testing and …
In this short podcast episode, Bryan explains how to keep your humanity and make moral decisions when selling IAQ products.
As the COVID-19 pandemic …
Nikki Krueger joins us to talk about how humidity impacts indoor health and some ways to make our indoor air quality better (for real).
Indoor air …
In this short podcast episode, Sal Hamidi of ProductsByPros joins Bryan to discuss what manometers are and how they measure pressure.
Manometers measure pressure at a much higher scale than a micron gauge but lower than …
Michael Housh and Jim Bergmann join Bryan to look into the crystal ball to see the future of air conditioning and design the PERFECT residential system.
Self-contained propane heat recovery chillers are futuristic …
Thomas Talhelm, the founder of Smart Air, joins Bryan on the podcast to talk about how a filter and a fan in China sparked an IAQ revolution. The …
In this short podcast episode, Bryan talks about the steady-state voltage problem that can take out inverter boards and what to do about it. …
Jim Bergmann and Michael Housh join Bryan to talk about testing A/C vitals. They discuss the new vitals mode in MeasureQuick and how it works. As with many of MeasureQuick's other functions, vitals mode is an invaluable …
In this short podcast episode, Bryan explains how to use liquid line temperature as a quick diagnostic indicator on split A/C systems.
Liquid line temperature is one of the first things to check when you approach a …
In this live podcast episode, we discuss viruses, bacteria, and fungi. We also explain how they interact with HVAC equipment, their effects on indoor air quality, and how businesses can protect their customers and …
In this short podcast episode, Bryan talks about science and how to balance practice and experience with the “why” behind what we do. He also …
We discuss some of the new, possibly strange-sounding business processes we've decided to implement at Kalos in 2020.
First of all, we are going to add terms and conditions that our customers must agree to. These terms …
Ben with Infinitum Electric comes on to tell us more about his super-innovative, groundbreaking PCB (printed circuit board) motor technology that we …
Rick from Certified Refrigerant Services joins us to talk about recovery and refrigerant management. He also explains what to look for and do to get the most from your program.
A refrigerant management program offers …
Chris LaPietra, vice president and general manager of Honeywell Stationary Refrigerants, joins us to talk about some new releases from Honeywell. He also covers refrigerants in general.
As our industry reduces its …
Eric Kaiser comes on the live podcast to talk through some commonly repeated EPA myths. We also discuss how to get the most from your recovery machine and tanks. The EPA exists to interpret broad laws into specific …
Gurminder Sidhu joins us from NATE to talk about what NATE is all about and bring us some news about the new changes and improvements.
NATE was created for the industry by the industry; the organization arose from a …
Alex Meaney from MiTek/Wrightsoft joins us at AHR 2020 to talk about some HVAC design myths and how to bust them in your mind. It was a really fun talk with a great guy.
One common HVAC design myth worth busting is …
Andrew Greaves joins us again from AHR 2020. This time, he discusses what mentors and role models do in our trade and why they're important.
Mentors …
In this podcast, HVAC School team members Kaleb and Leilani walk the floor and talk to various people about their products and companies at AHR …
In this live recording from the AHR Expo, Kaleb Saleeby, Nate Adams, Michael Housh, and Steve Rogers discuss building performance.
The building science world is an exciting place; we're all excited about improvements to …
Mike from Refrigeration Technologies talks to us about his journey in business, some new and old products, and how well the business is growing.
…
Richard Trethewey from This Old House joins Bryan on the podcast and tells his incredible story and shares some encouragement and laughs.
Richard works with his sons, Ross and Evan. He has always worked in a family …
This podcast is by Sal at Products by Pros, featuring Bryan Orr of HVAC School. In this episode, Sal asks Bryan all about micron gauges.
Products …
Rachel and Eric Kaiser join us to talk about connecting STEM concepts to the trades. They also explain how to teach STEM in a way that sticks.
STEM …
This short episode is a review of a list of installation reminders made by Kalos manager Jeff Crable. Kalos is doing a bunch of these installs for a …
In this face-to-face discussion, Bryan and Kaleb share some tips for diagnosing and replacing the reversing valve on a heat pump. These valves may also be known as four-way valves.
Kaleb and a trainee recently had to …
In this short podcast episode, Bryan talks about the times he has been hoodwinked in his career. It's time to name and shame.
One time at a trade show, Bryan came across a product called KVAR. KVAR is already an …
This live podcast episode is all about pool heater talk. We cover gas pool heaters and pool heat pumps, explaining how they work and common issues.
…
Alejandro Rios from True Refrigeration comes on to talk about self-contained R290. He explains what it is, why to love it, and how to service the sealed system.
R290 is pure propane, and it has recently made a name for …
In this short podcast episode, Bryan explains what happens when your low-voltage circuit puts out a lower voltage than it should.
Bryan recently …
In this live podcast from the Castbox app, we talk about codes and common causes for failed inspections. We talk about these topics both broadly and with some specifics.
Many of the places where we fail to meet codes …
In this live podcast episode from the Castbox app, we have four techs join us to talk about common furnace issues and best practices.
Those of us in heat-pump-dominant markets rarely have to worry about common furnace …
David Richardson with NCI, author of Duct Dynasty, joins us on the podcast to talk about mixed air temperature and more topics of interest.
When you bring outside air into the home, you introduce positive pressure …
In this short podcast, Bryan briefly explains why we use a voltmeter to measure “voltage drop” across loads and switches. He also covers some of the …
Ty Branaman from NTI comes on the podcast to share his passion for teaching. He also discusses his approach to impactful HVAC/R instruction.
It can …
In this short podcast, we take a quick look at Bryan’s take on practical safety improvements. He also discusses the safety year in review at Kalos.
Kalos had a great year in terms of safety. As the managers look back on …
Tim Fregeau from Goodway joins us to talk about descaling large equipment. He also discusses best practices and why they matter to you.
Scale refers to mineral deposits that build up in any water source. Water can be …
In this short podcast episode, Bryan talks a bit about brazing temperature. He also covers how to heat your copper to the proper temperature. You can use torches with oxyacetylene or air-acetylene tips.
Joining two …
In this live episode, we talk about heat pumps, why Bryan likes them, why other people don’t, charging and diagnosing them, and defrost.
Even though heat pumps work best in warmer climates, they can theoretically work …
In this crossover episode (rantcast), Bryan talks with Gary from HVAC Know It All. They vent about some of the phrases that techs throw around that are often false.
Technicians often throw around the phrase, "[X] will …
In this short podcast, Bryan discusses the differences between air, nitrogen, and oxygen. He also explains why we should only use nitrogen for …
In this LIVE episode, we talk about diagnosing inverter-driven systems. We also discuss some of the issues and solutions for over-voltage.
…
Jim Bergmann is back on the podcast. This time, he talks about common faults with high-efficiency 90+ condensing gas furnaces and their installation.
Bryan explains the core differences between followers and leaders. There is nothing wrong with being a follower, but if you are ready to move into …
Some great live guests join the podcast to discuss the advantages, disadvantages, and challenges of ductless and VRF equipment.
We started off working on ductless equipment with Mitsubishi, especially installing them in …
Jamie is back on the podcast. This time, he talks about the merits and pitfalls of floating head pressure and why you might care.
There is a relationship between floating head and floating suction, though the latter is …
In this short podcast episode, Bryan talks about circuit breaker facts. He also explains why they trip, what they do, and some different types and considerations.
Circuit breakers break the circuit during an …
In this episode from the archives, Dan Holohan joins us on the podcast and talks about his vast experience in the lost art of steam learned from …
In this honest—maybe overly honest—live podcast, we talk about the dark side of white shirt techs. We also discuss ways the industry can make money while doing the fundamentals well.
The term "white shirt" refers to a …
In this podcast episode, Bert joins Bryan to talk about what he has learned to help prevent the dreaded callback on the job.
Callbacks are bad news for customer service, time, and profit. However, the highest cost is …
This short podcast is for the newbies out there. For HVAC trade newbies, Bryan recommends applying 7 tips to help you win.
When you start off in the …
Jim Bergmann returns to the podcast to talk about the power quality meter. He also discusses what it is good for and how to use one.
A power quality meter accounts for the power factor in its measurements, and it …
In this short podcast, Bryan talks through (once again) what REALLY causes capacitors to fail and what we can do about it.
High temperatures and …
Eric Mele, Eric Kaiser, and John Oaks come on the podcast to talk about commercial PM best practices and what matters most.
Drain cleaning is a critical part of the standard commercial PM. You must assess the drainage …
In this live podcast from CASTBOX, we discuss the skills gap and how we are going to get more people into and trained in the HVAC/R trade.
Instead of gaining skills early in life and then looking for a job, many of us …
In this episode, Nate Adams and Michael Housh give the HVAC 2.0 rebuttal to the idea of standard load calculations. They take a different, possibly …
In this true story from Bryan's teen years, you learn about the "Freon Sniffer:" what inspired him to become an HVAC/R technician (maybe).
When Bryan was working with his uncle at age 14, he was an electrical apprentice …
In this podcast, Jim explains how to use a combustion analyzer. He also talks through the process of combustion analysis using Accutools BluFlame.
…
Duct and air handler (unit) sweating is a common issue in humid climates. Bryan talks about what causes it and what to do about it.
Many people try …
Alex from Wrightsoft is back to discuss duct design. He also explains a common mistake made when designing ducts using a Ductulator.
The Ductulator …
In this short podcast episode, Bryan explains what you need and the things you need to consider if you want to start a business in HVAC/R.
When you start a business, you need to have a healthy reserve of money already. …
Alex Meaney from Wrightsoft joins us to talk about Manual J and S. He also discusses how load calculations and equipment selection apply to …
In this live podcast from the Castbox app, we talk about analog vs. digital, digital vs. probes, and probe vs. non-invasive testing of A/C and …
In this short podcast episode, Bryan talks about ambient CO. He also explains why it matters and what you do to check for it.
CO, carbon monoxide, …
In this podcast, Michael Housh joins us to discuss his years of experience with geothermal heat pumps and their special considerations.
"Geothermal" is a rather generic term, similar to how people say "Freon" to refer …
In this short podcast episode, Bryan explains what water vapor diffusion is. He also explains why it matters to the everyday HVAC technician.
Vapor diffusion is the transfer and distribution of water vapor through a …
In this live conversation, we discuss some real-life situations with difficult customers. We also cover some helpful tips we learned along the way.
…
In this podcast episode, Henry Papa from Sporlan joins us in person to talk about refrigeration case controllers on systems with common compressors. …
In this short podcast episode, Bryan talks about brazing and soldering. He also weighs in on patching and if it is an allowable repair.
Brazing is …
n this live podcast episode, we have a fun conversation talking with Nathan Orr and Kevin Compass about grocery refrigeration.
The most common types of calls are those where the machine is "not making temp." Usually, …
Nathan Rothenberg and Ed Janowiak join Bryan to talk about the good, the bad, and the uncomfortable of ACCA Manual J, D, and S.
Manual J load …
In this short podcast episode, Bryan compares under load vs. bench capacitor testing to find out which testing method is better.
When we test the system while the motor is running, we call that testing under load. …
Eric Kaiser joins the podcast again, and this time, we are talking ECM motors. We discuss types, history, diagnosis, and failure prevention.
An ECM motor has a permanent magnet rotor, which means that the magnetism …
In this lively discussion, representatives from Chemours and Bluon Energy join the podcast. They talk about retrofit refrigerants and what to look for in a good retrofit.
The R22 phaseout has been on the agenda for a …
In this short podcast episode, Bryan discusses the importance of the trap and vent in condensate drains. He also describes some trapping and venting best practices.
Anytime you have long runs of horizontal drains, you …
In this live podcast episode, Bryan talks through real home IAQ solutions with Jim Bergmann and others. They also answer audience questions. Indoor …
Craig of AC Service Tech on YouTube joins Bryan on the podcast to explain how to charge an A/C unit. He also discusses his excellent new book.
Before you start charging a unit, you must know about superheat, …
In this short and nerdy science podcast, Bryan discusses how electromagnetism impacts every part of our lives. Electromagnetism refers to the movement of electrically charged particles.
From transformers to the visible …
In this first live podcast episode, Bryan responds to audience questions and discusses moisture and humidity issues in HVAC.
Moisture leads to other problems, including fungal growth. We often see moisture problems …
Eric Mele and Joe Shearer join Bryan to discuss the challenging issue of diagnosing and rectifying non-condensibles in the circuit.
Non-condensibles are gases that don't condense, including nitrogen. These are NOT …
In this short podcast episode, Bryan quickly covers defrost termination and failsafe. He also explains what they mean in refrigeration systems.
We need to defrost evaporator coils anytime they drop below freezing (32°F, …
John Pastorello from Refrigeration Technologies joins us to talk about testing oil and refrigerant for contamination. He also explains what each test …
In this short podcast episode, Bryan explains what to do when you get water in your tools. (Hint: the answer is NOT to panic!)
Some technicians try …
Mike Hardy from SpeedClean joins us to talk about how SpeedClean got started. He also explains why all contractors should consider engineered …
Eric and Bryan talk through some non-standard ways of thinking about filter drier usage. They also discuss how to install these non-conventional filter drier ideas.
The humble filter drier helps us prevent gunk from …
In this short podcast, Bryan discusses the recent ads and news articles claiming that homeowners are in trouble and that R22 is becoming illegal.
The R22 phaseout has been on the agenda for a long time and will finally …
My buddy Eric Kaiser from the ETS Group comes on to discuss a common problem we see in both students and techs as they study. We talk about issues with how they think about the trade and how to progress in it.
Eric …
Balancing complaints are common in the HVAC industry. In this short podcast, Bryan explains how diagnostic duct design solves those issues.
…
Eric really likes ceiling cassette air handlers, so much so that he put them in his own home. We discuss ceiling cassettes vs. highwall and other ductless-related topics.
A cassette air handler looks like a concentric …
In this short podcast episode, Bryan breaks down the most common defense for bad practices: time in the industry. He also explains how to STOP USING IT as an excuse.
When technicians communicate with each other, …
Devin Skipper comes on the podcast to give you an introduction to make-up air systems and explain their purpose. This time, we pull out all of the …
In this short podcast episode, Bryan covers multi-stage or variable-speed compressors. He also explains the impacts of staged compression. …
Jim Bergmann is back on the podcast to talk about the effects of dew point on coil TD. He also gives us a full rundown on recent MeasureQuick …
Bryan talks about EPR and CDS valves. We consider both to be evaporator pressure regulators, but they really function quite differently. CDS are …
Jim talks about dew point, bubble point, and midpoint in refrigerant blends. He also covers the purpose of each and why MeasureQuick displays midpoint on the gauges.
We've formerly used mostly pure refrigerants. …
In this short podcast, Bryan discusses the ever-controversial topic of indoor temperature in the summer.
The old "20-degree rule" has come up many …
Nathan Orr is back. In this podcast, we discuss suction pressure in market refrigeration and how rack techs think about it differently than HVAC.
On parallel rack systems, suction temperature helps technicians …
In this short podcast episode, Bryan explains why low static pressure may be bad. He also discusses the other indicators of airflow.
When you look at fan charts, you'll notice that there will be an available static …
Nathan and Bryan have a rollicking conversation about Nathan's transition from residential HVAC to market refrigeration. Nathan also covers what he …
In this short podcast episode, Bryan covers pricing for HVAC/R parts and services; he explains how to come up with a fair price.
To be able to price fairly, we need to understand what value and sacrifice look like. In …
We talk with chemical and cleaning expert Ray Field on Legionnaires' disease. We discuss what it is, its history, and what we can do to prevent it …
In this short podcast episode, Bryan covers ductless or mini-split cleaning. He collaborated with SpeedClean to map out this procedure and write a …
Andrew Greaves comes on the podcast to give us a sneak peek into the life of a tool manufacturer. Andrew has worked in the field for a long time and …
In this short podcast episode, Bryan covers the bypass factor in airflow and psychrometrics. He also explains why it matters to techs.
The bypass factor is a ratio: you take the difference between the evaporator coil …
Colleen Keyworth from Women in HVAC/R comes on the podcast to talk about the importance of getting women excited about our trade.
While many women …
In this short podcast episode, Bryan explains the ins and outs of vacuum pump maintenance, a critical component of evacuation.
The most basic part of vacuum pump maintenance is changing out your vacuum pump oil. This …
David Holt from NCI comes on the podcast to talk about airflow testing and its importance as a customer service tool for the HVAC trade.
Charging …
In this short podcast episode, Bryan covers the basics of sunk costs. He explains what they are and what they mean for you and HVAC businesses.
Sunk costs are costs to decisions that have been made in the past. You've …
Steve Rogers from the Energy Conservatory comes on the podcast to talk about residential air balancing and flow hood accuracy.
Residential air balancing is important because it contributes to comfort in the home. To …
In this short podcast episode, Bryan covers the unique practices of brazing steel. He also explains how it differs from brazing copper.
Brazing steel appears to be a rather uncommon practice in the HVAC industry. …
John Pastorello from Refrigeration Technologies is back on the podcast to talk about leak detection procedures from start to finish.
Big Blu was …
In this short podcast, Bryan dives into enthalpy. He explains what it is and how we see it at work in the HVAC/R systems we service daily.
Enthalpy is a fancy word for the total heat energy within a substance. Don't …
Jim Devlin from Weil-McLain joins us to talk about high-efficiency and cast-iron boilers. He also explains how to use them together in a "hybrid" configuration to serve your customers.
Cast-iron boilers are …
Do you need different gauges for each refrigerant? In today's short podcast, we discuss the answer to this common HVAC question.
When we first started using R-410A, many people warned us that we'd have to use a …
In this two-part interview, Moe Hirsch goes deep and wide on buffer tanks and strategies for "parking" BTUs in hydronic systems.
Systems with a high domestic hot water load can also benefit from a buffer tank. You can …
In this two-part interview, Moe Hirsch goes deep and wide on buffer tanks and strategies for "parking" BTUs in hydronic systems.
When we use boilers, we want to use a heat sink to "park" BTUs in a buffer tank so that we …
In today's short podcast episode, Bryan covers the basics of refrigerant oil in HVAC/R systems. He also discusses what technicians can do to maintain oil systems.
Oil lubricates the moving parts of the compressor. So, …
In today's podcast, Kevan Mayer from NAVAC comes talks about recovery and ways to make it work better and more safely for you.
Recovering refrigerant is better for the environment and safer for us. When designing …
In this short podcast episode, Bryan covers the difference between volt-amps (VA) and watts when we take electrical measurements.
We usually use VA …
In this episode, I talk with tech, contractor, and consultant Genry Garcia. He tells us about his experiences with independent consulting and …
In this short podcast episode, we talk about condensate drains. We get into the basics of cleaning, pitch, drain pans, and more.
Cleaning drains …
Bert and Bryan discuss the commonly repeated phrase, "refer to manufacturer's specs," in HVAC work. They discuss when referring to the manufacturer's specs works and when it feels like a crutch.
Sometimes, you need to …
By viewer request, Bryan talks about some solar system basics in this short podcast episode.
Solar energy is an up-and-coming power source that will …
Bryan and Bert talk through a real-life issue we all face as techs: work-life balance. Bert’s recent video “triggered” Bryan a bit, so they talk through it.
Bryan believes that the work-life balance doesn't necessarily …
Today's short podcast episode is all about surge protection on HVAC/R equipment. Lightning poses a severe threat to equipment, and surge suppression may or may not help.
Unfortunately, surge protection cannot protect …
In this episode, we talk with Moe about the world of hydronics. We discuss some fundamentals and talk about various boiler and radiator types.
Hydronic systems use water flow to move heat. We can compare these systems …
In today's short podcast, we answer the following question: Should you ONLY use OEM parts? We also explain why the answer is what it is.
It can be …
In this rather unorthodox short podcast episode, Andy gives his timeless soft skills tips. We also tell you a bit more about a special training event in Orlando in just a few weeks.
Soft skills and communication are …
In today's podcast, Bryan covers some of the facts about humidity. He also explains how to keep humidity under control in all climates. Humidity …
In this short podcast episode, we talk about the myth that time at a job or in the business equals or deserves pay increases.
Many people believe that showing up for a long time justifies a raise. They aren't …
In today's podcast episode, Mark Roth from Goodway talks about chiller and cooling tower cleaning best practices and techniques. Goodway makes …
In this short podcast episode, we address the myth that IAQ is a joke. We also discuss how to think about IAQ correctly in HVAC work.
Indoor air quality is NOT a joke. However, it has a bit of a bad reputation in our …
Chris Stephens from HVACR Videos joins us to talk about his experiences with and perspective on R290 (propane) refrigerant in restaurant refrigeration.
Chris sees R290 propane on a daily basis, and his perspective as a …
In this short podcast episode, we discuss the common myth about cleaning flame rods/sensors/rectification devices.
Flame sensors or rectification rods are NOT the same as thermocouples or thermopiles. Thermocouples and …
In this podcast episode, Eric and I discuss his new home and his plans for installing central air the Eric-Mele way. Eric's home doesn't have an attic, crawlspace, or basement. So, designing and installing central A/C …
In today's short live podcast, Bryan discusses the importance of context in education and the challenge presented by information.
When we learn, we do ourselves a disservice by searching for information alone. …
In this episode, Jordan Cummings comes on the podcast to review application-based system selection considerations for VRF/VRV systems.
A VRF/VRV …
In today's short podcast episode, we talk about specific gravity, also known as relative density. We explain why it matters to technicians.
When we talk about specific gravity, we're actually talking about density. …
In this episode, we speak with Embraco about R290 (Propane) refrigerant, hydrocarbons, and what you need to know about them. Embraco is primarily …
We talk about measuring tricky amperage on a blower and condensing fan motor. We also cover why you may be measuring inaccurately, resulting in a …
In this service manual talk-through episode, Eric Mele helps us discuss the Heatcraft Beacon 2 refrigeration system. We talk about what it can do and what it entails.
The Heatcraft Beacon 2 is a refrigeration system …
This short podcast episode covers the why and the how of low ambient cooling and refrigeration.
Low ambient cooling refers to operating A/C …
In today's podcast, I talk to John Oaks about his experience as a VRF tech in the field, including branch boxes and two-pipe vs. three-pipe …
This is a voice-over audio presentation of the article of the same title on the HVACRschool.com website ("The Trade Skills Gap: A Manifesto).
The …
Jason Obrzut comes on the podcast and talks us through his furnace sequence of operation training: "Take It Slow, It's Gonna Blow!"
There are 6 main steps in Jason's furnace sequence of operation training. The phrase, …
In this short podcast episode, we talk through stack effect. We explain what it is and what sorts of comfort issues it can cause in a home.
Most of us understand that hot air rises even though heat itself doesn't rise. …
Jim Bergmann gives us a year-end review of all that is happening at MeasureQuick and his predictions for the future of app-based diagnosis. He also covers what's been going on with Redfish, BluFlame, BluVac, Supco, …
What is the difference between accuracy, precision, and resolution? In today's short podcast, Jim Bergmann explains the differences and why they …
John guides us through all aspects of ventilation and system design. He gives us a review of point ventilation, ASHRAE 62.2, whole-home strategies, …
Bill and Bryan discuss gas and combustion tools. These tools include manometers, combustible gas detectors, personal CO detectors, draft gauges, and …
In this short podcast episode, Bryan speed-talks through all the basics of heat pumps and how they function.
Heat pumps are not physical pumps or components on an A/C system. A heat pump is an HVAC unit that is also …
Jason from ESCO and Cengage comes on to talk about the varying landscape of EPA 608 regulations with what you need to know for now (circa 2018).
The …
In this short podcast episode, Bryan shares his experience as an entrepreneur and his tips for anyone who wants to run and grow a successful business.
In our first ever ask-me-anything (AMA) podcast, we talk about the trade as a whole and answer random questions about Kalos and myself.
Some people …
When we replace equipment, we sometimes wonder if the old unit was undersized. Here are some things to consider before replacing that old A/C with a …
What is the difference between r-value and u-factor? Why should we care about the differences? In this short podcast, we'll explain what those …
This episode is very exciting to me because we get to have Dr. Allison Bailes on the show. Today, he shares his knowledge about friction rate and …
Rusty Walker with Hill-Phoenix comes on and talks about CO2 triple and critical points. He also covers some best practices for refrigeration techs working with CO2.
The triple point is the temperature and pressure at …
In this short podcast episode, we cover what you need to consider before you solder or braze any type of joint in HVAC/R work. We want to give …
Eric Mele is back on the podcast. This time, we cover hot gas as a reheat dehumidification strategy with all of the broad strokes you should be …
In this short podcast episode, Bryan covers three things you can do to level up and make you a much better tech tomorrow. Everyone will notice your improvement. Also, no matter what level you're on, you can become even …
In this episode, Jim Bergmann does a deep dive into combustion analysis. He covers everything you need to know to keep a furnace running safely and efficiently.
When you go into a home, one of the first things you …
This short podcast episode is about a simplified way to explain the basic refrigerant circuit to new techs. By explaining a component as an absorber, rejector, increaser, or dropper, you may help lock in the basic idea …
In this first part of the two-part combustion analysis series, Jim Bergmann covers CAZ testing or worst-case draft pressure testing in detail. He also explains why it matters to techs and customers. Once again, …
In this short podcast episode, we talk about the commissioning mindset and what it REALLY takes to set up and commission a new system properly. We commonly check airflow and the refrigerant charge during commissioning.
…
In this podcast episode, Rusty Walker from Hill Phoenix talks us through the three most common types of market CO2 systems and how they work: …
Can you really trust that temperature reading? In this short podcast episode, we talk about some common mistakes techs make when making temperature measurements and what to do about it.
Many heat pumps use heat strips …
James Bowman returns to the podcast to talk about analog vs. digital manifolds. He also explains why both of them may still have a place in the …
In this short podcast episode, we share some quick tips about keeping panels and insulation in place to avoid a costly screwup.
Often, technicians …
John Pastorello, the HVAC chemist, comes on the podcast and discusses refrigerant additives such as acid inhibitors, oil enhancers, dyes, and leak sealants with his knowledge and some things to consider.
Acid …
Many technicians use hard or soft copper without thinking about which application is best for which. In this short podcast, Bryan talks about where to use each. He also covers some hanging and strapping strategies.
…
Kevan Mayer with NAVAC comes on and talks all about flaring best practices step by step. From cutting to reaming to torque wrenches, we cover how to make a flare from start to finish. The goal of making a good flare is …
In today's podcast, Eric Mele and Bryan talk about chilled water air handlers, their valve configurations, and some key things to look out for.
In a chilled water system, we don't have the traditional evaporator and …
In this short podcast episode, Bryan gets feedback on a podcast topic from Andy Holt. Per Andy's request, we discuss some intangible soft skills …
Chris Stevens from HVACR Videos on YouTube comes onto the podcast and talks about some refrigeration temperature controls basics. You can check out …
Bryan talks about the differences between mineral oil (MO) and POE oil, the advantages and disadvantages of using them, and when to use them.
Mineral oil (MO) is what we've used for a long time. We like using it because …
Eric Mele returns to the podcast to discuss quality cleaning and maintenance procedures for small refrigeration systems. These small refrigeration systems include reach-in refrigerators and open-air cases on grocery …
Bryan talks about the top refrigerant leak detectors, the best refrigerant leak detection practices, and some good leak detection tips.
Leak detectors require some flow through them. Otherwise, they won't detect leaks. …
How does a vacuum pump work? When should you change the oil? What does that oil do anyway? Kevan Mayer of NAVAC comes on the podcast to answer these …
In today's short podcast episode, Bryan covers some tips about HVAC/R service valves and caps for new technicians. While service valves may seem …
Jamie Kitchen returns to the podcast and talks all about hard shut off TXVs/TEVs. He discusses bleed and non-bleed valves and why the TXV type matters to your compressor.
When it comes to TXVs, there are two main …
In today's podcast, we cover why both compressor and evaporator superheat matter. We also address some common confusion related to each.
Evaporator and compressor superheat are two different readings that give you …
In today's podcast, Jim Bergmann joins us to talk about evacuation. He discusses pulling a vacuum, conductance speed, microns, core removal, decay …
In today's short podcast episode, Jim Bergmann and Bryan answer the age-old question: Can you really freeze water in a vacuum by pulling down too …
In this episode, we talk with two techs recently out of trade school. We get their perspective on their trade education and how it compares to the …
Bryan talks about MicroChannel coils, what issues could happen with them, and what the best practice is to clean them.
MicroChannel coils are kind of …
In this episode, Eric Mele dives into the world of pumps, controls, cooling towers, and everything else related to the water side of a water source …
In this short podcast episode, Bryan covers how to measure air velocity directly at a return or supply and what those readings tell you.
Since many techs like to focus on CFM and static pressure readings, they can …
In today's podcast episode, Eric Mele walks us through the components of water source heat pumps, how they work, and what to look for. Water source heat pumps use water to transfer heat to and from the outdoor unit; …
In this short podcast episode, Bryan Orr discusses the best practice methods for testing run capacitors in the field.
We understand the capacitor to …
In this episode, Bryan Orr talks about how the seasons affect our HVAC work and how to manage stress during the busy season.
If you work in the trade, you will notice that we have busy and slow seasons. If you own a …
In today's short podcast episode, Bryan discusses the voltage drop measurement tool, also commonly known as the voltmeter. You can also find this …
In today's podcast episode, we have a conversation about the pros and cons of commercial vs. residential HVAC with Andrew Greaves. (You may know him as AK HVAC on Youtube. Check out his channel HERE and his comedy …
In this short podcast, Bryan covers three things that the condenser does. He also explains where those things happen and what those they mean in terms of system operation.
The evaporator coil does two things: boiling …
Many techs have said, "That's the first thing you should have learned in school." In today's short podcast, Bryan talks about the four rules that …
In this episode, we speak with the founder of Refrigeration Technologies, John Pastorello. He also tells us all about chemicals, cleaners, and HVAC …
In today's podcast episode, Jonathan Romberg comes on to discuss how the Danfoss ERC 213 works and reviews its parameters with us.
Timestamps: 10:30 …In this podcast, we discuss the real significance of superheat and why it is much more than "a way to set the refrigerant charge on a fixed metering device."
Superheat is the temperature of a vapor above saturation. …
This is the story of WITH JOSHUA NICHOLLS FROM PLATINUM ELECTRICIANS and how he went from pulling wire, to creating a franchise empire to giving …
In today's podcast, Jon Bennert with Air Oasis talks about photo-catalytic oxidation (PCO) air purification. He explains how it works and what it …
In this episode, we talk about air as a form of matter. We cover air volume, density, weight, and mass and why it matters to you.
So, air has weight …
In today's podcast episode, Ralph Wolf comes on and discusses inverter equipment. He also talks about Mitsubishi, Bosch, and what he’s been up to …
Part 2 - Bert (Kalos Tech) and Keiran (Kalos Apprentice) join Bryan in the studio to talk through the basic refrigerant circuit and how it functions. They talk compressor, condenser, metering device, and evaporator as …
Part 1 -Bert (Kalos tech) and Keiran (Kalos apprentice) join Bryan in the studio to talk through the basic refrigerant circuit and how it functions. They talk compressor, condenser, metering device, and evaporator as …
In today's podcast, I talk with Corbett Lunsford about his new show about home performance and diagnosis. Home Diagnosis airs on PBS in winter 2018. Even though Home Diagnosis mostly deals with building performance, …
Sean Harris with Positive Energy and Aeroseal Austin sat down with me at the humid climate conference and talked about how to seal ducts from the …
Today's short episode covers five things residential techs need to consider when tasked with doing maintenance on a commercial system. We mostly talk about light commercial package unit maintenance in this episode.
If …
In today's podcast episode, Lee Andrews with Andrews Filters talks about the complicated and important topic of air filters and filtration. He also …
Have you ever struggled to repair a leak in an all-aluminum coil? Lance Robinson with SolderWeld talks about his product to do just that and makes a …
This short podcast episode covers the most misunderstood portion of Ohm's law explained masterfully from 1921: when resistance goes up, amps go down.
In today's podcast episode, Jamie Kitchen talks about refrigeration controls and applications. He also tells us about the Danfoss ERC 213 universal …
In this episode, Adolfo Wurts from Arbiter comes on and debates why a tech would want to use a manifold over wireless probes and vice versa.
In our …
In this podcast episode, Phil Barr joins Bryan to explain sizing for wires and breakers in HVAC/R work. You will be able to select breakers, conductors, and fuses properly and without confusion. Phil Barr is the leader …
In today's podcast episode, Johnathan Jones from Clean Comfort, Ultra-Aire, and Therma-Stor talks to us about humidity, dehumidification, and ventilation.
Relative humidity (RH) is a moisture content ratio that depends …
In this short episode, we replace a dirty "M" word (mold) with another "M" word (moisture) that gets to the root of the problem.
"Mold" and "mildew" …
Here is part 2 of the discussion with Trevor Matthews about the causes and prevention of air conditioning and refrigeration compressor failure.
Slugging occurs when the compressor attempts to compress oil or liquid …
In this short podcast, we start the conversation about "Energy? Compared to What?" and explore several energy comparison examples.
When we think about energy, we can confuse some terms. For example, temperature and heat …
In today's podcast, we talk with Trevor Matthews with Emerson. He tells us about the causes and prevention of air conditioning and refrigeration compressor failure.
Most compressors don't die a natural death... they're …
In today's podcast episode, we talk with system and duct design educator Jack Rise about ACCA Manual J load calculation and Manual S system …
In this podcast, Bill Johnson shares his practical tips to make low-voltage electrical diagnosis easier in HVAC work. Bill is one of the original …
In this podcast episode, refrigeration tech Eric Mele talks us through some common characteristics of walk-in freezers and refrigerators. Eric recently discussed reach-in refrigerators on the podcast, and you can listen …
In this short podcast episode, Bryan covers some basic best practices for wire routing and wire connections in HVAC work.
When it comes to electrical work of any kind, the wires must have proper protection. For …
In the second part of this podcast series, Jim covers the basics of furnace commissioning in more detail with some common-sense practices. (Listen …
In this short podcast episode, Bryan talks about blower taps in furnace systems. He explains how to set up their fan speeds and repair them.
Before you even look at the blower taps in a system, you must know a bit …
In today's podcast episode, Jim Bergmann covers furnace commissioning, including setting up furnace input, clocking the meter, setting temperature rise, and much more. The goal of commissioning is to optimize a …
This short podcast episode is about saturation and what it means. Bryan covers related topics, including boiling, evaporation, and condensing.
…
In this discussion with Bill Spohn from TruTechtools.com, we cover the practical steps and tools for YOU to start measuring airflow today, if not …
Today, Bryan discusses delta T (evaporator air temperature split) what it is, what it means, and how to avoid some common pitfalls.
Delta T is NOT the air temperature rise on a furnace, and it is NOT the design …
In this simultaneously heavy and lighthearted discussion, Bryan Orr and Andrew Greaves discuss ego, Dunning-Kruger, insecurity, and apprenticeship in …
In this short episode, we review the basics of the refrigerant circuit. The standard HVAC refrigeration circuit has four main components: compressor, condenser, metering device, and evaporator.
The compressor squeezes …
In today's podcast episode, Eric Mele comes on to talk about reach-in coolers (refrigerators), freezers, and wine coolers with some mindset and …
Stephen Rardon and Neil Comparetto join the podcast to talk about their headfirst dive into building performance as HVAC techs. They discuss jobs they do, how the transition has been, and important HVAC principles in …
Dick Wirz, author of Commercial Refrigeration for Air Conditioning Technicians, talks to us about refrigerator and freezer defrost strategies. Check out Dick's book HERE.
In commercial refrigeration, we deal with much …
In this episode, Bill and Bryan recap the 2018 AHR conference with what they learned and what you can expect to see in the HVAC/R trade in the next year. There were 2100 exhibitors who gave demonstrations and discussed …
In today's podcast episode, Bryan talks to west-coast commercial tech Jim Loring about pneumatic controls and variable air volume (VAV) systems.
…
Jeremy Smith goes over floating suction and floating head refrigeration strategies. He also talks a bit more about low-ambient equipment operation.
…
Bryan talks with Jesse and Nathan about setting up dehumidification for residential equipment in general. They also discuss some of the required and recommended settings on an Ecobee thermostat.
On typical single-stage …
In this episode, we cover the skills and traits needed to be the best residential service techs you can be. We follow up on the last episode's tips …
As we ring in the new year, this episode focuses on how people in the HVAC/R trade can get a raise, promotion, or bonus without facing rejection or sounding selfish.
Before you think about asking for a raise or …
In this podcast episode, we discuss power distribution and some practical tips about three-phase, single-phase, and split-phase power.
The power …
Learn about large-scale desiccant dehumidification from the expert, Tom Peterson. Tom works with CDI (Climate By Design International).
…
Carter tells us why compression ratio is important, what it means, why it changes so much on heat pump systems, and the effect it has on system operation. We also talk a bit more about heat pumps and their unique …
In today's podcast, Bryan talks about voltage (volts) and resistance (ohms), specifically using a voltmeter and an ohmmeter for diagnosis. We also …
Jamie Kitchen from Danfoss talks all about variable-speed motor technology. He discusses why those motors exist, what they do, and how to think …
Jack Rise returns to the podcast to share some duct design facts with us and talk about his Manual D book on the ACCA website.
Before we can even start thinking about duct design, we need to think about the total …
Nate Adams joins the podcast to describe the method behind his madness of removing gas meters and installing heat pumps in Ohio. Nate is in the home performance business, and he focuses on its intersection with the HVAC …
Bill Johnson is one of the great educators and writers of our time in HVAC/R. In this podcast episode, he shares some information about his career and some of his top tips on keeping systems leak-free.
Bill began his …
Jim takes us all the way through the history of furnaces, from the Stone Age when he was a child to modern modulating condensing types.
The goal of …
This podcast episode on electrical circuits is a class recording. In it, Bryan discusses transformers, ground, common, and line vs. load sides of a circuit.
Transformers use induction to pass alternating current …
In HVAC work, we deal with quite a few electrical components. But where does electricity come from? Why do electrons move? In this podcast episode, …
Do you think of the building envelope as a duct? Do you test it? In this podcast episode, Joe Medosh talks to us about envelope testing and why it’s the future of building health and comfort.
The building envelope is …
Ductless expert Jesse Claerbout talks about his best maintenance practices for ductless air conditioners and heat pumps. This episode is part 2 of the two-part series.
Ductless outdoor units tend to have clean …
Ductless expert Jesse Claerbout talks about his best practices for maintaining ductless air conditioners and heat pumps. This episode is part 1 out …
In this episode, we cover some common misconceptions about run capacitors, some easy ways to test them, and some tips on working with them.
A run capacitor is a power storage device; it contains oil to dissipate heat …
James from Rectorseal talks about the IMC codes relating to tamper-resistant caps and why you may consider installing them now.
Tamper-resistant caps, also known as locking refrigerant caps, fit on refrigerant ports to …
Many techs know just enough about economizers to bypass them. In this podcast episode, Jerry Eavenson and Bryan talk about the basics of what an HVAC economizer is and how it functions.
Economizers typically work on the …
Dan Holohan is the father of modern steam heat training. This episode is a narration of his in-depth steam article "A Steam Heating Primer" from …
In today's podcast, Bryan talks with legendary Hydronics author and trainer Dan Holohan about the history of steam heating and some practical …
This special podcast episode focuses on the tragic life and times of Spark Ranger Roy Sullivan.
Roy Sullivan was a park ranger who was born in …
In today's podcast, Bryan and Jamie talk about the electronic expansion valve (EEV). Bryan and Jamie describe how EEVs work and the reason they exist. In the process, the hosts also review a wide range of metering …
In today's podcast episode, trade school student Chris Caldwell interviews Bryan about trends in the HVAC industry, his business, and the future. …
In today's podcast, Chris Reeves joins Bryan to discuss filter driers, including suction driers, liquid driers, core driers, different media, and basic applications. Filter driers are simple components, but they have …
In today's podcast, Bryan covers the four basic gas laws and how they apply to you as an HVAC technician in the field, not just in theory. Remember, when dealing with pressure, you must convert the units to PSIA, not …
Alex Figueroa is a VRF and refrigeration tech in Puerto Rico, and he talks to Bryan about his work and specialized experiences. Since Mitsubishi is a forerunner in the ductless industry, many of the units that Alex has …
What do you need to know to walk up and fix a VRF or ductless system? John Chavez, longtime VRF/ductless pro, covers his approach to ductless and VRF …
This episode covers some basics of matter that relate to HVAC/R. These basics include mass, weight, and volume. There will also be some talk of …
What do you need to know to walk up and fix a VRF or ductless system? John Chavez, a longtime VRF/ductless pro, explains his approach in Part 1 of this podcast.
You CANNOT have a haphazard approach to installation or …
Frank Besednjak talks about proper communication in conflicts between techs and managers. He also covers the potential problem with inexpensive air conditioning maintenance specials.
When it comes to communication, …
Carter Stanfield, a co-author of Fundamentals of HVACR, talks about the entire refrigeration circuit. He also explains how to read and plot a pressure-enthalpy diagram.
The refrigeration circuit has four main …
James Bowman talks to Bryan about leak sealant products, including RectorSeal's Leak Freeze product. James talks about how sealants work, what happens when they don't work, and how to be open-minded without being …
Dick Wirz, author of Commercial Refrigeration for Air Conditioning Technicians, talks about making the switch from A/C to refrigeration.
Dick Wirz is …
Camron Conlee joins the podcast to give us an introduction to ammonia chillers. He also explains what it's like to work with a poisonous refrigerant. The California division of TDI Refrigeration, where Camron works, …
Adolfo Wurts from Arbiter Incorporated, designer of the UEI WRS line of Bluetooth scales, comes on the podcast. We talk all about scales and how to …
In this quick announcement I talk about the launch of the revolutionary diagnostic and data management tool MeasureQuick
Todd Liles of Service Excellence Training joins the podcast. He talks about techs who shouldn't be on commission, how to make the most of your …
Jim Bergmann returns to the HVAC School podcast to cover some advanced topics in evacuation, including rig setups and triple evacuation.
To increase …
In this episode, Brent Ridley talks about the flame-free ZoomLock fittings and why he is using them for almost everything to replace brazing. These …
Jeff Neiman returns to the HVAC School podcast to explain how we can perform leak detection on a low-pressure chiller. Jeff works on systems with …
In this episode of the podcast, Jim Bergmann talks about the launch date of the measureQuick (MQ) app, what it will do, why he made it, who it is for, and why it's different than anything else that came before.
…
James Bowman of Rectorseal returns to the podcast to discuss condensate switch codes and some best practices to comply with the codes.
The humble condensate switch actually has installation standards; although there …
Les Fork returns to the podcast to discuss on-call rotations. He explains why being on call is necessary and how you can make the most of it.
We are supposed to be on call for the sake of customer service; when a …
In this podcast episode, Jim Bergmann continues talking about standard air, air density, and mass vs. volume as well as some other methods of …
Bill Spohn Jr. is a college intern working towards his business degree, but he took a week to see what it is like to work as an HVAC tech. He shares …
In this two-part podcast series, Jim Bergmann talks about measuring airflow in HVAC systems. He covers a wide range of airflow measurement instrumentation and readings.
In this first episode, Jim covers ECM motor …
In this podcast episode, Bryan talks about brazing basics and tips. He goes over safety, regulator settings, torch positioning, flowing nitrogen, …
Bryan talks to Ralph Wolf from T&N Services on YouTube and the Working Joe's podcast. We talk about blue-collar life, how the trade has changed …
This episode is a rebroadcast of a very useful episode from the Corbett Lunsford's Building Performance Podcast at …
Restaurant HVAC and refrigeration tech Nick Messick comes on the podcast to talk about restaurant equipment, especially the "hot side." The "hot side" refers to equipment that heats the food; it includes often deep …
Phil Zito of Building Automation Monthly comes on the podcast to discuss building automation and what HVAC techs should know about it.
Automation …
In this podcast episode, Bryan and Mike Layton of Shore Distributors explain how HVAC contractors and distributors can build a great partnership. …
In this episode, Bryan talks with Jamie Kitchen from Danfoss about why and how thermostatic expansion valves (TXVs) fail and how they function in the first place.
As fixed orifices become a dying breed with the …
In this second part of the podcast, Jim Bergmann wraps up the steps to check a system charge without connecting a gauge manifold.
You can check the …
In this episode of the podcast, we talk about gauges. Jim Bergmann from Redfish Instruments and the MeasureQuick app explains why you may want to …
In this episode, Jack Rise talks about duct design regarding ACCA manual D, friction rate, face velocity, duct velocity, and what is ACTUALLY wrong with flex duct.
Manual D causes a lot of confusion for technicians, and …
In this episode, Bryan speaks with Eric Shidell about some of the basics of system freezing, what causes it, and what to do about it.
Freezing is a normal part of some equipment, such as low-temperature freezers and …
Corbett Lunsford from the Building Performance Workshop and the Proof is Possible tour talks to us about the moral superiority of building performance testing, blower door testing, and much more.
Building performance …
In this episode of the podcast, Bryan talks with Andre Patenaude from Emerson about CO2 refrigeration, and transcritical booster systems. Modern CO2 …
In this just-for-fun episode, we celebrate 10 years of great tools and excellent customer service with TruTech CEO Bill Spohn. We hope you enjoy this …
In this episode, Bryan talks with HVAC products designer Adolfo Wurts about technology, automation, and the coming robot apocalypse. Automation is a …
In this episode of the podcast, Jeremy Arling from the EPA comes on and answers some common questions about the new rule changes that affect …
In this episode of the podcast, Jim reviews the basics of evacuation and dehydration. He also covers hoses and vacuum gauge placement.
Evacuation may just seem like a method to suck air and water out of a system. …
In this episode of the podcast, Jamie Kitchen from Danfoss talks about wet-bulb, dry-bulb, relative humidity, dew point, enthalpy, and latent heat. …
In this episode, Bryan and Jim discuss measuring voltage drop and what it means. They also cover some other pointers to keep from using parts to …
In this podcast, Jeff Neiman shares an overview of his chiller startup procedure and some things he looks out for when starting a chiller after the initial chiller installation.
The actual chiller startup is typically …
In this episode, Bryan speaks with James Bowman from Rectorseal about hard start kits, PTCR devices, run capacitors, compressor overheating, and the Kick Start product. We also go pretty in-depth on potential relays and …
In part 2 of this conversation, we go through the condensing unit and wrap up the call with our no-fluff customer service best practices.
The service callA thorough inspection is critical on any residential service …
This is part 1 of 2 on the soft skills practices of approaching and completing a residential service call in the best manner possible.
Before the service call and good housekeepingBefore a technician even leaves to go …
In this podcast episode, Bryan talks about grounding and some common misunderstandings related to ground, neutral, ground rods, and lightning.
The common phrase that "current goes to ground" is a myth. The transformer …
Bryan talks with Nick Messick about some ice machine basics. They also discuss how to determine when to pick up the phone and call tech support.
Ice machines have the same basic refrigeration circuit as HVAC systems. …
In this episode of the podcast, we talk about condenser wire sizing considerations, ampacity, temperature, conductor sizing, voltage drop, and why a …
In this episode of the podcast, we talk to Bill Spohn from TruTech Tools about how TruTech Tools got its start and some of the ways that techs and …
In This episode Justin talks about the trials and benefits of working out of town, long drives and this weeks boiler service calls in detail.
Jesse and I talk about MORE best practices for installing ductless systems.
Both lines should be insulated on a ductless system because they have …
Bryan and Jesse talk in detail about ductless applications we commonly see, best system placement, drains, and much more.
Ductless systems are unique, and their compact nature makes them a good choice for several small, …
In this episode with BENOÎT MONGEAU, we talk about the components of combustion and what to consider when testing it on a fuel-burning appliance.
Combustion requires fuel, oxygen, and a heat source in a correct balance. …
In this episode Justin talks about his first A/C repair of the season, his old combustion analyser and why he is enjoying the Testo Smart Probes his …
Dan Holohan speaks to Bryan about his background and journey as a writer. He also dives into his book, Pumping Away, and describes classic hydronics …
In this episode, Ruth King shares some of her top insights on how to create a maintenance program if you don't have one. She teaches us to recognize a broken program and fix it.
The maintenance component of your company …
In this episode, Ruth breaks down some of the main things an A/C contractor needs to consider when looking at their numbers and some of the major leaks that can lead to unprofitability.
Profit and loss (P&L) …
Tersh and Bryan were both techs working for other companies when they started their own businesses. This episode is a look back at what they got right, what they got wrong, and the top things that have worked over the …
In this episode, Bryan speaks with Jim Bergmann of Redfish Instruments about his path to being a test instruments business owner. He has also worked with Testo and has teaching experience under his belt.
In the past, …
In this podcast, Bryan talks about condensing temperature, condenser split, and subcooling. All three of the values are proportional. If one changes, …
In this episode, Bryan talks a bit about the air side of the system. Understanding airflow is all about seeing the relationship between readings. We …
In this first episode of a new series Justin talks about the calls he is doing before and after he does them, giving us a look inside the van of a senior HVAC tech.
In this episode of the HVAC School Podcast, we talk about some cool technologies and controversial tools.
Joe Shearer joins us to talk about hard …
In this podcast episode, Jeremy Smith comes on the podcast to talk about low-ambient controls, headmaster valves, charging, and condenser flooding.
…
Bryan takes a break from the technical talk and tells a quick story about how two brothers fueled an industry and created an empire with raw sibling rivalry. Bryan co-owns a family business, and we understand that many …
In this episode, we talk with Jeff Nieman about chillers and how they work.
For those of you who primarily work in residential or light commercial HVAC, chillers may be unfamiliar at best and terrifying at worst. …
In this episode, Bryan and Bert talk about properly stripping cables and leak detection best practices. Bert is a senior technician and self-proclaimed leak detection expert.
As a slight aside, Bert CAN'T STAND when …
n this episode, Bryan covers evacuation, recovery, and dehydration.
Evacuation refers to putting a vacuum pump on the system and pulling it down. We …
In this episode, Bryan talks to Business and Sales Trainer Bob Gee about HVAC business practices.
Bob has watched sales and leadership evolve a lot …
In this episode, Bryan talks to YouTube star Stephen Rardon about combustion analysis.
In Florida, we mostly have A/C units and heat pumps. High-efficiency furnaces are not in our wheelhouse, but furnaces are more like …
In this unedited episode of HVAC School, Bryan and Nathan talk about some basic rules for circuit board diagnosis.
So, circuit boards are boards with …
Benoit Mongeau comes on the podcast to talk about high-efficiency gas furnace basics and maintenance practices.
When maintaining a high-efficiency gas furnace, you typically don’t have to worry about cleanliness in the …
In this episode of HVAC School, Bryan talks with Ulises Palacios about some cool technology.
Ulises has become a technology expert through his many …
In this episode of HVAC School, Bryan covers the basics of heat pumps.
Heat pumps are common technologies in Florida. They reverse the sequence of …
In this episode, Bryan and Nathan have a banter-filled conversation about electrical components that confuse techs. If you are looking for a serious …
This podcast is a high voltage A/C electrical class that Bryan gave to some of the Kalos apprentices.
The high voltage journey begins with basic …
In this episode, Bryan talks to Justin Skinner about the standard gas furnace sequence of operation.
Regardless of the furnace type, it all begins with a heat call on W...
Then, the furnace checks the safeties to make …
Central Florida techs know the Southern winter all too well. Let's face it. It doesn't get super cold here regularly, but when it does, EVERYONE …
In this episode of the HVAC School Podcast, Bryan talks with Jeremy Smith about refrigeration tips, terms and processes. They also cover the …
In this episode of the HVAC School Podcast, Bryan talks with Tim Bagnall about flowing nitrogen.
Many techs don't flow nitrogen. Some may say that it …
In this episode, Bryan goes back over the basics and stresses the importance of diagnosing the whole system.
I'll cut to the chase: inspection is NOT …
In this podcast episode, Bryan goes over best practices for diagnosing and replacing an A/C or refrigeration compressor.
When testing for a shorted …
In this episode of HVAC School, Bryan covers the "5 pillars of refrigerant circuit diagnosis" and why they matter. They are:
In this episode of HVAC School, Bryan talks to his sons about basic electrical theory.
Electrical theory normally requires trigonometry, calculus, …
This episode of HVAC School is a Kalos meeting where Bryan talks to his team about an incident where a leak was erroneously detected on the …
In this episode of HVAC School, we discuss the entire basic refrigerant/compression refrigeration circuit.
We are in the business of moving heat. …
In this episode of HVAC School, I talk with my brother Nathan... and he whines a lot about cool tools I like.
As you might have guessed, Nathan is in …
In this episode of HVAC School, Bryan talks to some apprentices about basic thermodynamics. That is the fancy scientific way of saying that we're …
In this episode of HVAC School, Bryan talks to Leslie about the deceptive TXV.
Thermostatic expansion valves, also known as TXVs or TEVs, are …
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