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 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.
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 …
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 ACCA manuals. Ed started off in the field and has recently become the new …
In today’s podcast, Bryan and Jesse talk about how technicians can talk about finances and money in the HVAC business.
The first step for any …
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 …
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, …
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.
The first …
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 here to set the record straight.
If the manufacturer tells you to …
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 …
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
Chad Gillespie: Chad is a senior manager, part of …
Trevor Matthews is back and dropping more compressor knowledge on us
My man Don Gillis w/ Emerson joins us to teach us the basics of CO2 refrigerant
The great Ed Janowiak (Jon-Oh-Wok) joins us to talk about what correct airflow really looks like and how to design for it appropriately.
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.
Kaleb, Joe and Eric join us again to discuss some myths about single pole contactors as well as some weird crankcase heater wiring configurations
Trevor Matthews with Emerson Canada joins us once again to talk about EEV’s - How they work, what they do well as how to diagnose them.
Trevor Matthews from Emerson Canada joins us again to talk about CoreSense by Emerson
Refrigeration Software (CoreSense Protection, Diagnostics & Performance Alert) – …
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
Our good friend Trevor Matthews from Emerson Canada joins us to talk about compressors, why they fail, how to prevent failures and how to …
In this episode, Neil Comparetto from Comparetto Comfort Solutions joins Bryan and Kaleb to discuss what he has learned about installing duct systems …
In this episode Kaleb, Joe, Eric and Bryan answer some questions from Facebook
Our Main man Bill Spohn joins us again to talk specifically about combustion and how to select and properly utilize an analyzer
Jaden Lane joins us to discuss some best practices when using hoods and how the Dwyer Smart is innovating in the hood space
Russ King joins us to discuss simplifying duct design for residential contractors
Bill Spohn w/ TruTech joins us to talk about why being “approximately correct” is better than being “exactly wrong” and how that applies to test instruments
Jordan Cummings is back and we discuss some of the most important points in the proper installation of VRF / VRV systems and especially piping best practices.
Bryan and Eric Mele have a relaxed conversation on how to manage time on the job and in life
Bryan talks through the impacts of altering compression and airflow and some of the ramifications
We ONCE AGAIN talk superheat and subcooling to help people who struggle with the concept get a better grasp on it
Bryan and Kaleb talk about the properties of air and discuss dry bulb, wet bulb, dew point, and relative humidity
Many contractors confuse markup with margin and it can lead to the difference between being profitable and losing it all.
Ron comes on and answers questions about UVC and pulls no punches
In this free-flowing conversation, Trethewey talk about growing up with This Old House, what the show is like behind the scenes, what Rich misses …
We are joined by two of the great air and infiltration expert minds of our time, Gary Nelson and Steve Rogers from TEC (The Energy Conservatory) to talk about blower door testing and how it compares to real-life …
Nikki joins us to talk about how humidity impacts indoor health and some ways to really make our indoor air more healthy
Michael Housh and Jim Bergmann join Bryan to look into the crystal ball and design the PERFECT residential system
Thomas Talhelm, founder of Smart Air joins Bryan on the podcast to talk about how a filter and a fan in China changed his thinking about air purification
In this episode Bryan talks about the steady state overvoltage issue that can take out inverter boards and what to do about it
Jim with MeasureQuick and Michael Housh join Bryan to talk about the new vitals mode in MeasureQuick and how it works
How to use liquid line temperature on split a/c systems as a quick diagnostic indicator
In this episode, Bryan talks about how to balance practice and experience with the “why” behind what we do and how either one can cause an error if …
In this episode, we discuss some of the new… possibly strange-sounding business processes we are implementing at Kalos in 2020 and why.
Ben with Infintium Electric comes on to tell us more about his super innovative PCB motor technology that we saw at AHR 2020
Rick from Certified Refrigerant Services joins us to talk recovery and refrigerant management and what to look for and do to get the most from your program
Chris LaPietra, vice president and general manager, Honeywell Stationary Refrigerants joins us to talk some new releases from Honeywell and refrigerants in general
Eric Kaiser joins me live to talk through some commonly repeated EPA myths and how to get the most from your recovery machine and tanks
Gurminder Sidhu joins us from NATE to talk about what NATE is all about and some of the new changes and improvements
Alex Meaney from Mitek/Wrightsoft joins us to talk about some HVAC design myths and how to bust them in your mind. Fun talk from a great guy.
HVAC School team members Kaleb and Leilani walked the floor and talked to various people about their products and companies and Bryan had a quick …
Mike from Refrigeration Technologies talks to us about his journey in business, some new and old products and how well Refrigeration Technologies is …
Richard Trethewey from This Old House joins Bryan on the podcast and tells his incredible story and shares some encouragement and laughs.
Products by Pros
Guest: Bryan Orr
What should technicians looks at when deciding on a micron gauge
Why should a tech even use a micron gauge
Rachel and Eric Kaiser join us to talk about making STEM concepts more common in the trades and how to teach STEM in a way that sticks
This short episode is a review of a list of installation reminders made by Kalos manager Jeff Crable for a bunch of installs we are doing for a commercial customer. I thought it was a nice list and worth going over …
In this face to face discussion Bryan and Kaleb share some tips for diagnosing and replacing reversing valves
In this live episode, we talk through gas pool heaters and pool heat pumps. How they work and common issues.
Alejandro Rios from True comes on to talk about self contained R290, what it is, why to love it and how to service the sealed system
We talk about common causes for failed inspections both broadly and with some specifics
We have four techs join us to talk common furnace issues and best practices
David Richardson with NCI joins us on the podcast to talk mixed air temperature and more Nationalcomfortinstitute.com
A quick conversation on using a voltmeter to measure “voltage drop” across loads and switches and some of the differences
Ty Brannaman from NTI comes on the podcast to share his passion for teaching as well as his approach to being an impactful educator
A quick look at Bryan’s take on practical safety improvements and the safety year in review at Kalos
Tim Fregeau from Goodway joins us and talks about descaling best practices and why it matters to you.
In this live episode, we talk Heat pumps, why Bryan like them, why other people don’t, how to charge and diagnose them and defrost
In this crossover episode Bryan talks with Gary from HVAC Know It All about some of the phrases that techs throw around that are often false.
In this short we discuss the differences between these gases and why only nitrogen is to be used for purging, flowing and pressurization
In this LIVE episode we talk about diagnosing inverter systems and some of the issues and solutions for overvoltage
Jim is back taking about common faults with high efficiency 90+ Condensing Ga furnaces and their installation
There is nothing wrong with being a follower but if you are ready to move to leadership here are my tips
So great live guests join to discuss the advantages, disadvantages and challenges of ductless & VRF
Jamie is back on the podcast talking about the merits and pitfalls of floating head pressure and why you might care
In this short episode Bryan talks about breakers, why they trip what they do and some diffent types and considerations
In this episode from the archives Dan Holohan joins us on the podcast and talks about his vast experience in Steam learned from long dead men.
In this honest... maybe overly honest... live podcast we talk about the dark side of white shirts and ways the industry can make money while doing the fundamentals well
Bert joins Bryan to talk about what he's learned to help prevent the dreaded callback
IF you are new to the HVAC trade here are 7 things to apply to help you win
Jim is back to talk about power quality meters and what they are good for as well as how they are used
We talk through (once again) what REALLY causes capacitors to fail and what to do about it
Eric Mele, Eric Kaiser and John Oaks join us to talk about commercial PMs and what matters most
In this live podcast from CASTBOX we discuss how we are going to get more people into and trained in the HVAC/R trade
In this Episode Nate Adams and Michael Housh give the HVAC 2.0 Rebuttal to the idea of standard load calculations with a different… possibly more …
In this true story from my teen years you learn what inspired me to become an HVAC/R technician (Maybe)
In this podcast Jim talks through the process of combustion analysis using Accutools BluFlame
Duct and air handler sweating is a common issue in humid climates. Bryan talk about what causes it and what to do about it.
Alex from Wrightsoft is back to discuss duct design and a common mistake made when contractors design a duct system using a Ductulator. Use the offer …
Alex Meaney from Wrightsoft joins us to talk about Manual J and S and how that applies to real world situations where contractors are tempted to replace “Like for Like”. Use the offer code POD2019 for a great discount …
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 …
What is ambient CO? Why does it matter and what do you do to check for it.
My buddy Micahel Housh joins us to discuss his years of experience w/ Geothermal Heat Pumps
What is water vapor diffusion and why does it matter to the HVAC technician?
In this live conversation, we discuss some real-life difficult customer situations and what we learned along the way
Henry Papa from Sporlan joins us in person to talk about refrigeration case controllers
We taking about brazing, soldering and if patching is an allowable repair
In this live episode we have a fun conversation talking with Nathan Orr and Kevin Compass about Grocery Refrigeration
Nathan Rothenberg and Ed Janowiak join me on the podcast to talk the good the bad and the uncomfortable of ACCA manual J D & S
We discuss under load vs. bench capacitor testing and which is better
Eric joins us again and this time we are talking ECM motor types, history, diagnosis and failure prevention
In this lively discussion we have representatives from Chemours and Bluon Energy on to talk about retrofit refrigerants and what to look for in a good retrofit
The practice and importance of trapping and vent condensate drains.
We talk through real IAQ solutions live with Jim Bergmann and others
Greg of AC Service Tech on YouTube joins me on the podcast to talk refrigerant charging as well as his excellent new book
In this short and nerdy science talk I discuss how electromagnetism impacts every part of our lives
In this first live episode we discuss moisture and humidity issues in HVAC
Eric Mele and Joe Shearer join Bryan to discuss the challenging issue of diagnosing and rectifying non-condensibles in the circuit
In this episode we quickly cover the words termination and failsafe and what they mean in relation to refrigeration defrost
John Pastorello from Refrigeration Technologies joins us to talk about testing oil and refrigerant for contamination and what each is good for.
What to do when your tools get wet
Mike Hardy from SpeedClean joins us to talk about how SpeedClean got started and why engineered solutions should be considered by all contractors
Eric and Bryan talk through some non-standard ways of thinking about filter driers and how they can be installed.
There are a lot of ads and news articles clamining that homeowners are in trouble and the R22 is becoming illegal. Is that true?
My buddy Eric Kaiser from the ETS Group comes on to discuss a common problem we both see in how students and techs think about the trade and how to progress in it.
For a technician who comes across a customer balancing complaint, How do you think about and help to solve the problem?
Eric really likes ceiling cassette air handlers. So much so that he put them in his own home. We discuss cassettes vs. highwall and other ductless related topics
The most common defense for bad practices and how to STOP IT
We pull out all of the initials in this episode MAU, MUA, DOAS and MHGRV to give you an introduction to outdoor air systems and their purpose
Jim is back and gives us a full rundown on recent MeasureQuick updates and what to expect in the future.
EPR and CDS valves are often both considered Evaporator Pressure Regulators but they really function quite differently
Jim talks about dew point, bubble point and midpoint, the purpose of each and why MQ displays midpoint on the gauges
The old "20 degree rule" has come up many times and it's time to put to rest
Nathan Orr is back and we discuss suction pressure in market refrigeration and how rack techs think about it differently than HVAC
Nathan and Bryan have a rollicking conversation on his transistion from residential to markets and whats he's learned along the way that can help you …
We talk with chemical and cleaning expert Ray Field on Legionnaires' disease, what it is, it’s history and what can be done to proactively prevent it.
Colleen Keyworth from Women in HVAC/R joins us to talk about the importance of getting women excited about our trade.
David Holt from NCI stops by to talk about airflow and its importance as a customer service tool for the HVAC trade
Steve Rogers from the Energy Conservatory joins us to talk residential air balancing and flow hood accuracy
John Pastorello from Refrigeration Technologies is back on the podcast to talk leak detection procedures from start to finish.
Jim Devlin from Weil-McLain joins us to talk high efficiency and cast iron boilers and how you can use them together in a "hybrid" configuration to serve your customers
Do you need different gauges for each refrigerant? We discuss.
In this two part interview Moe Hirsch goes deep an wide on buffer tanks and strategies for "parking" btus in hydronic systems
In this two part interview Moe Hirsch goes deep an wide on buffer tanks and strategies for "parking" btus in hydronic systems
Kevin Mayer from NAVAC comes talks about recovery and ways to make it work better and more safely for you.
In this episode I talk with tech, contractor and consultant Genry Garcia about his experiences in helping other contractors in South Florida.
Bert and Bryan discuss the commonly repeated phrase “refer to manufacturers specs” and when it works and when it feels like a crutch.
By request, Bryan talks some solar system basics
Bryan and Bert talk through a real-life issue we all face as techs. Bert’s recent video “triggered” Bryan a bit and they talk through it.
In this episode we talk with Moe about the world of hydronic heating. We discuss some fundamentals and talk various boiler and radiator types
Should you ONLY use OEM parts? fact or fiction.
Andy gives his timeless soft skills tips and we tell you more about a special training event in Orlando in just a few weeks
Find more at TopRate.com
Bryan covers some of the facts about humidity and how to keep it under control in all climates
In this episode we talk about the myth that time at a job equals or deserves pay increases
Mark from Goodway talks about chiller and cooling tower cleaning best practices and techniques
In this episode we address the myth that IAQ is a joke and how to think about IAQ correctly
Chris Stephens from HVACR Videos joins us to talk about his experiences with and perspective on R290 (propane) refrigerant in restaraunt refrigeration
In this podcast we discuss the common myth about flame rod / semsor / rectification cleaning
Eric and I discuss his new home and how he plans to install new central air the Eric Mele way.
We talk through measuring amperage on a blower and condensing fan motor and why you may be measuring inaccurately resulting in a misdiagnosis.
In this episode we review application based system selection considerations for VRF/VRV systems
We talk about Specific gravity, relative density and why it matters to a tech
In this episode we speak with Embraco about R290 (Propane) refrigerant, Hydrocarbons and what you need to know about them.
We talk through measuring amperage on a blower and condensing fan motor and why you may be measuring innaccurately resulting in a misdiagnosis
In this service manual talk through episode we discuss the Heatcraft Beacon 2 refrigeration system and what it entails
This episode covers the why and the how of low ambient cooling and refrigeration
I talk to John Oaks about his experience as a VRF tech in the field including branch boxes and two pipe vs. three pipe technology
This is a voice over audio presentation of the article of the same title on the HVACRschool.com website
Jason Obrzut come on and talks us through his furnace sequence of operation training
Take It Slow, It's Gonna Blow
We talk through stack effect. What it is and what issues it causes.
Jim gives us a year end review of all that is happening at MeasureQuick with Redfish, BluFlame, BluVac, Supco, Testo and Fieldpiece
What is the difference bewteen accuracy, precision and resolution
John guides us through all aspects of ventilation and ventilation design with a review of point ventilation, ASHRAE 62.2, whole home ventilation …
Bill and Bryan discuss manometers, combustible gas detectors, personal CO detectors, draft gauges and combustion analyzers
In this episode Bryan speed talks through all the basics of a heatpump and how it functions.
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
In our first ever ask me anything podcast we talk about the trade as whole and answer random questions about Kalos and myself
Here are some things to consider before replacing that old A/C with a bigger one
What is the difference between R-Value and U-Factor and why should you care?
This episode is very exciting to me because we get to have Dr. Allison Bailes on the show to talk about friction rate and duct design.
To find out more about everything Dr. Bailes has to say about building performance …
Rusty Walker with Hill Phoenix comes on and talks about CO2 triple and critical points and some best practices for refrigeration techs working w/ CO2
We cover what you need to consider before soldering or brazing any type of joint
Eric is back and this time we cover hot gas as a dehumidification strategy with all of the broad strokes you should be aware of
This episode Bryan covers three things you can do to make you a much better tech tomorrow and everyone will notice
In this episode Jim Bergmann does a deep dive into combustion analysis and covers everything you need to know to keep a furnace running safe and efficient
This episode is about a simplified way to explain the basic refrigerant circuit to new techs that may help lock in the basic idea of absorbing and rejecting heat
In this part one of the two part combustion analysis series Jim Bergmann covers CAZ testing or Worst-Case Draft and Pressure Testing in detail and why it matters to techs and customers
In this episode we talk about what it REALLY takes to setup and commision a new system properly
In this episode Rusty Walker from Hill Phoenix talks through the three most common types of market CO2 systems and how they work. Secondary, Cascade and Booster.
Can you really trust that temperature reading? In this short episode we talk aout some common mistakes techs make in making temperature measurements and what to do about it.
James Bowman is back and we alk about analog vs. digital manifolds and why both of them may still have a place in the industry
In this short episode we share some quick tips about keeping panels and insulation in place
John Pastorello the HVAC chemist comes on the podcast and discusses acid inhibitors, oil enhancers, dyes and leak sealants with his knowledge and some things to consider.
Many technicians use hard or soft copper without thinking about which application is best for which. We talk about where to use each as well as some hanging and strapping strategies
Kevin Mayer with NAVAC comes on and talks all about flaring best practices step by step. From cutting, to reaming to torque wrenches we cover flares start to finish
We talk about chilled water air handlers, their valve configurations and some key things to look out for
In this episode Bryan gets feedback on a podcast topic from Andy Holt and we discuss some interpersonal and other soft skills required to be a top …
Chris Stevens from HVACR Videos on Youtube comes on and talks some refrigeration temperature controls basics
Eric Mele is back and we go over some best practices and tips for performing a quality clean and check on small refrigeration systems
How does a vacuum pump work? When should you change the oil? What does that oil do anyway? We answer these questions and more in this episode
Some tips for HVAC/R service valves and caps for new technicians
Jamie Kitchen is back on the podcast talking all about TXV / TEV bleed and non-bleed and why it matters to your compressor
We cover why both compressor and evaporator superheat matter as well as address some common confusion related to each.
We talk evacuation, conductance speed, microns, core removal, decay rate and all that other nerdy vacuum stuff with Jim Bergmann
Can you really freeze water in a vaccum by pulling down too fast? what should you do about it?
In this epsiode we talk w/ two techs recently out of tradeschool and get their perspective on their trade education and how it compares to the field
In this episode Eric dives into the world of pumps, controls, cooling towers and everything else related to the water side of a water source heating …
In this episode Bryan covers how to measure air velocity directly at a return or supply and what it tells you
Eric Mele walks us through the components of water source heat pumps, how they work and what to look for
A conversation about the pros and cons of commercial vs. residential with Andrew Greaves from AK HVAC on Youtube
Three things done in an HVAC/R condenser and what it means
Many techs have said "That's the first thing you should have learned in school" These 4 rules are my vote for the first things to learn in school.
In this episode we speak with founder of Refrigeration Technologies John Pastorello all about chemicals and cleaners and how to best clean a coil
Danfoss ERC 213
10:30 – Key Features
10:41 – Voltage Protection
10:56 – Compressor Protection
14:43 – Applications
15:15 – App 0 No …
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"
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 …
Jon Bennert with Air Oasis talks about Photo-catalytic Oxidation air purification, how it works and what it does.
In this episode we talk air volume, density, weight and mass and why it matters to you
Ralph Wolf comes on and talks inverter systems, Mitsubishi, Bosch and what he’s up to nowadays
Part 2 - Bert (Kalos Tech) and Keiran (Kalos Apprentice) join Bryan in studio to talk through the basic refrigerant circuit and how it functions. They talk compressor, condenser, metering device and evaporator as well …
Part 1 -Bert (Kalos Tech) and Keiran (Kalos Apprentice) join Bryan in studio to talk through the basic refrigerant circuit and how it functions. They talk compressor, condenser, metering device and evaporator as well as …
I talk with Corbett Lunsford about his new show about home diagnosis on PBS coming this Winter
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 inside with Aeroseal
5 things residential techs need to consider when tasked with doing a PM on a commercial system.
Lee Andrews with Andrews Filters talks about the complicated and important topic of air filtration and why it matters to you and your customers
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 episode covers the most misunderstood portion of Ohms law explained masterfully from 1921.
Jamie Kitchen talks about refrigeration controls and applications as well as the Danfoss ERC213 universal digital controller Find out more at …
In this episode Adolfo from Arbiter comes on and debates some why a tech would want a manifold over probes and vice versa. Find out more about the …
How to properly size HVAC/R wires and breakers without confusion
Johnathan Jones from Clean Comfort, UntraAire and Thermastor talks to us about dehumidification, ventilation and more...
A dirty M word replaced with another M word that gets to the root of the problem
Part 2 of the discussion with Trevor Matthews with Emerson about causes of air conditioning and refrigeration compressor failure and the causes …
In this short we start the conversation about "Energy? Compared to What?" where we explore all of the energy comparison examples and examples of comparison of energy.
We talk with Trevor Matthews with Emerson about causes of air conditioning and refrigeration compressor failure and the causes Verifying System …
We talk with system and duct design educator Jack Rise about ACCA Manual J load calculation and Manual S system selection
Bill Johnson shares his practical tips to make low voltage electrical diagnosis easier
Eric Mele talks us through some common characteristics of walk-in freezers and refrigerators
In this episode we cover some basic best practices for wiring and wire connections
Jim covers the basics of furnace commissioning in more detail with some common sense practices
How do you set blower taps anyway?
Jim covers setting up furnace input, clocking the meter, setting temperature rise and much more
This episode is about saturation and what it means 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 …
Delta T (Evaporator air temperature split) what it is, what it means and how to avoid some common pitfalls
In this simultaneously heavy and lighthearted discussion, Bryan Orr and Andrew Greaves discuss ego, Dunning Kreuger, insecurity and apprenticeship in …
In this short episode we review the basics of the refrigerant circuit. Compressor, Condenser, Metering Device and Evaporator Find out more at …
Jon Bennert from Air Oasis teaches us about PCO and Bi-Polar air purification and how it works.
A summary of reach in coolers (refrigerators), freezers and wine coolers with some mindset and technical tips
Neil and Stephen talk about their dive head-on into building performance and what that looks like day in and day out in an HVAC contracting business.
Author of commercial refrigeration for air conditioning technicians, Dick Wirz talks to us about refrigerator and freezer defrost strategies.
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.
We talk to west coast commercial tech Jim Loring about pneumatic controls and VAV
Jeremy Smith goes over floating suction and floating head refrigeration strategies as well as some more on low ambient operation.
Bryan talks with Jesse and Nathan about setting up dehumidification for residential equipment in general as well as some of the required and recommended settings on an EcoBee thermostat
In this episode we cover the skills and traits needed to be the best residential service tech you can be.
As we ring in the new year this episode focuses on how people in the HVAC/R trade can make more money without being rejected or seen as selfish.
We discuss power distribution and some practical tips about 3 phase, single phase and split phase power.
Learn about large-scale Desiccant dehumidification from the expert, Tom Peterson w/ CDI
Carter tells us why compression ratio is important, what it means and why it changes so much on heat pump systems and the effect that has on system operation.
We look at voltage and resistance, specifically using a voltmeter and an ohmmeter for diagnosis as well as a discussion of voltage drop.
Jamie Kitchen from Danfoss talks all about variable speed motor technology. Why it exists, what it does and how to think differently about the future …
this is the second episode with Jack Rise. Jack is one of my favorite authors and educators in HVAC and you will enjoy his tips in this podcast.
Nate Adams loves to eliminate gas meters and install high-performance heat pumps on high-performance homes in Ohio. Learn his secrets and whether or not he is as crazy as it sounds.
Bill Johnson is one of the great educators and writers of our time in HVAC/R and he shares about his career and some of his top tips on keeping systems leak free.
Jim takes us all the way through the history of furnaces from the stone ages when he was a child all the way to modern modulating condensing furnaces.
This class recording discusses transformers, ground, common, and line vs. load sides of a circuit.
Where does electricity come from and why do electrons move? In this epsiode we talk about differential charges, sine waves and some voltage …
Do you think of the Building envelope as a duct? Do you test it? In this episode Joe Medosh talks to us about envelope testing and why it’s the future of Building health and comfort
Ductless expert Jesse Claerbout talks about his best practices for maintaining ductless air conditioners and heat pumps part 2
Ductless expert Jesse Claerbout talks about his best practices for maintaining ductless air conditioners and heat pumps part 1
In this epsiode, we cover some common misconceptions about run capacitors as well as some easy ways to test and some tips.
James from Rectorseal talks about the IMC codes relating to tamper resistant caps and why you may consider installing them now
Many techs know just enough about economizers to bypass them. In this podcast we talk about the basics of what they are and ow they function,
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 …
I talk with legendary Hydronics author and trainer Dan Holohan about the history of steam heating and some practical application of old ideas. Find …
The unfortunate life and times of Roy Sullivan
We talk about EEV's, how they work, the reason they exist as well as review the entire range of metering devices.
Chris Caldwell interviews Bryan in this podcast about the industry, his business and the future.
An overview podcast on filter driers including, suction driers, liquid driers, core driers, different media and basic applications
We cover the 4 basic gas laws and how they apply to you as a technician
Alex Figueroa is a VRF and refrigeration tech in Puerto Rico and he talks to Bryan about his experience
What do you need to know to walk up and fix a VRF or Ductless System? Long time VRF and Ductless Pro John Chavez covers his approach in part 2 of this podcast
This episode covers some basics of matter that relate to HVAC/R - Matter, Mass, Weight and volume. This includes specific gravity and specific …
What do you need to know to walk up and fix a VRF or Ductless System? Long time VRF and Ductless Pro John Chavez covers his approach in part 1 of this podcast
Frank Besednjak talks about proper communication in conflict between techs and managers as well as the potential problem with inexpensive air conditioning maintenance specials
Carter Stanfield, co-author of Fundamentals of HVACR talks the entire refrigerant circuit as well as reading and plotting a pressure enthalpy diagram
James Bowman talks to Bryan about sealant products, how they work, when they don't work and how to be open minded without being gullible.
Dick Wirz, author of "Commercial Refrigeration for Air Conditioning Technicians" talks about making the switch to refrigeration, Evaporator split, defrost and more...
In This episode I talk with Camron Conlee about the world of ammonia refrigeration. How the circuit is set up, what it's like to work with a poisonous refrigerant and much more. Find out more about TDI at …
In this episode we talk scales. Weighing refrigerant in, weighing refrigerant out and the new UEI WRS110, WRS220 and WRSX that may be the best and …
In this quick announcement I talk about the launch of the revolutionary diagnostic and data management tool MeasureQuick
In this episode we talk to Todd Liles from Service Excellence training about techs who shouldn't be on commission, looking to the future and making …
In the episode, Jim Bergmann takes us through evacuation soup to nuts, rig setup, pumps, pump oil, gas ballasts, sweeping nitrogen (triple evac) and much more...
In this episode Brent Ridley talks about the flame free Zoomlock fittings and tool from Parker and why he is using it for almost everything to …
In This episode I talk with Jeff Neiman about chiller leak detection and SPECIFICALLY low pressure chiller leak detection Also Pipe Wiper - http://www.a-jacksmanufacturing.com/pipe-wiper Testo Fall Promo - …
Jim Bergmann talks about the launch of MeasureQuick, What it does, the inspiration for it and a few big announcements about integrations for the app. Find out more here - …
In this episode we talk condensate switch best practices and the IMC codes as well as switches for RTUs and Ductless
In this episode, we talk about being on call as a technician as well as delve into some best and worst practices.
In This episode we talk a lot about standard air, air density and mass vs. volume as well as some other methods of "directly" measuring airflow... it …
Bill Spohn Jr. is going to college for a business degree but he took a week to see what it is like to work as an HVAC tech. He shares his impressions …
In this episode Jim Bergmann covers static pressure, measuring delivered capacity and ECM motor considerations
In this episode Bryan talks about brazing safety, regulator settings, torch positioning, flowing nitrogen, heat control and more....
In this episode Bryan talks to Ralph Wolf from T&N Services on Youtube and the Working Joe's podcast. We talk about how the trade has changed for …
This episode is a rebroadcast of a very useful episode from the Corbett Lunsford's Building performance podcast at …
If you have ever been curious about working on restaurant equipment and cooking equipment we have a fun conversation with some of the basics. P.S. - …
Bryan talks with Phil Zito from BAS monthly about Building Automation and EMS. What it is, how it works and why it might be something to learn more about.
In this episode of the HVAC school podcast Jamie Kitchen from Danfoss talks about common causes of TXV failure, how they function and how to set …
In Part 2 - Jim Bergmann wraps up the steps to check a system charge without connecting a gauge manifold
In this episode Jim Bergmann lays the groundwork for checking a system charge without ever connecting a manifold.
Popular speaker, trainer and writer Jack Rise comes on and talks about ACCA manual D, duct design, common mistakes and much more.. You can find the …
In this episode of HVAC School Bryan talks with Eric Shidell about the most causes of system freeze up and some of the things you can do about it
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.
Andre Patenaude talks to us about the basics regarding CO2 as a refrigerant, CO2 refrigeration and Transcritical booster systems. Find out more at HVACRSCHOOL.com/CO2
In this episode Bryan and Bill Spohn talk about 10 years of TruTech tools and we read some of the comments from the big 10 year giveaway.
In this episode Bryan talks with Adolfo Wurts about advances in technology and automation and how it has and will continue to impact the trade.
Jeremy Arling from the EPA discusses the new changes to the EPA 608 rules and regulations including recovery, evacuation and much more.
In this episode, Jim Bergmann talks about evacuation, moisture, and vacuum best practices
In this episode we talk humidity, dry bulb, wet bulb, grains of moisture, enthalpy, weather and so much more.
In this episode of The Hvac School Podcast Jim Bergmann and Bryan talk about measuring Voltage drop and how it can prevent "bandaid" repairs.
In this episode of the podcast Jeff walks Bryan through a new chiller startup step by step
In this episode Bryan talks with James Bowman, technical director at Rectorseal, in person at the HVAC Excellence conference about hard start kits, potential relays and more.
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.
This is part 1 of 2 on the soft skills practices of approaching and completing a residential service call in the best manner possible.
In this episode we talk about some myths related to bonding, grounding, neutral and equipment ground
We talk to Nick Messick about some ice machine basics and when and when not to call tech support.
In this episode we talk the National Electrical Code, Wire Sizing, Breaker sizing, wire insulation rating, derating conditions and much more.
In this episode Bryan talks with Bill Spohn from TruTech about the TruTech story, some practical airflow measurement advice and tech vs. engineer …
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.
In Part 2 Jesse and I talk about MORE best practices for installing ductless systems
In this episode I speak with a highly experienced ductless installer and service professional Jesse Claerbout, He shares some best practices regarding application analysis and some common pitfalls... ESPECIALLY with …
In this episode with BENOÎT MONGEAU we talk about the components of combustion and what to consider when testing combustion on a fuel burning appliance.
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, pumping away, classic hydronics, and the difference between search and research.
In this episode Ruth talks about how to reduce seasonality in your HVAC business by creating a good, quality maintenance program.
How can you REALLY tell how profitable you are? Bryan talks to Ruth King about reading your profit and loss statement as well as common money leaks.
In This Episode Bryan Speaks with Tersh Blissett about starting a business and some important tips for operating a successful contracting business.
In this episode Bryan speaks with Jim Bergmann about his path to being a test instruments business owner. we talk about -
- The Challenges in the …
In this podcast we talk about
- Condensing Temperture
- Heat mode superheat
- Heat mode subcooling
- Condenser Split
and much more
In this episode Bryan talks a bit about the air side of the system including latent and sensible, Relative Humidity, Wet Bulb, Dry Bulb and static …
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 -
- Carrier's bypass economizer
- Hard Start Kits
- StayBrite #8
- Discharge Line …
Jeremy Smith talks Motormaster valves, fan cycling, slit condenser charging and much more...
Read the companion tech tip here
A quick story about how two brothers fueled and industry and an empire with raw sibling rivalry.
In this episode we talk with Jeff Nieman about-
- Fan Coils
- Chiller Water
- Screw Chillers and So much more..
Also, Bert …
In this episode Bryan and Bert talk about properly stripping cables and leak detection best practices including.
- Using your senses for leak detection
- Electronic Leak Detection
- Pinpointing Leaks
In this episode we talk the ins and outs of recovery evacuation and dehydration best practices
This episode is a rare look at business, sales and people skills instead of tech skills. This is an interview I did with Bob Gee several years ago.
In this episode Bryan speaks with Stephen Rardon about gas and combustion analysis.
For 6% off of tools go to HVACRschool.com/trutech offer code = …
In this unedited episode of HVAC School Bryan and Nathan talks about some basic rules for circuit board diagnosis including -
- Isolation Diagnosis
Bryan talks to Ben from Canada about gas furnace basics as well as high-efficiency furnace basics and maintenance.
In this episode I get Ulises Palacios on the phone and we talk about some of the things he has been up to. Specifically the iManifold / Bluvac …
In this episode Bryan talks about heat pumps, reversing valves, defrost, common issues, checking charge in heat mode and diagnosing the dreaded bypassing reversing valve.
In this episode Nathan and Bryan talk about Relays, Sequencers, Transformers, Contactors, open and Closed Circuits and much more.
In this episode we talk through some electrical basics. Including potential difference, motor leads, capacitor basics and much more.
Bryan talks to Justin Skinner from Virginia and they talk about furnace sequence of operation and diagnosis tips.
In Florida we have a lot of heat pumps and pool heaters. In this episode I talk to my staff about some things they will want to know before it gets …
In this episode I talk to Jeremy Smith and he shares some of his refrigeration experience... and his Barry White smooth voice.
Also - got to …
I talk to Tim Bagnall from Arizona in this episode and we discuss flowing nitrogen and the differences between Florida and Arizona.
In this episode of HVAC school we cover some things you need to be checking on every service call.
In this episode we go through the important steps to properly diagnose and replace hermetic compressors. we even tackle some controversial issues like meggohmeters and acid inhibitors.
Before you call your manager or a senior tech, make sure you have these 5 readings down pat. Suction Pressure, Liquid / Head pressure, Superheat, …
In this episode of HVAC School, we talk BASIC electrical theory. Ohm's law, Watt's law, inductive vs. resistive loads, inductive reactance, loads, …
This Episode of HVAC School is a meeting I had highlighting a mistake we made in our business and going over how to be both a good and profitable …
In this episode of the HVAC School Podcast we talk about the basic refrigerant circuit, the compressor, Condenser, metering device, evaporator and …
This episode of HVAC School is a conversation on the merits and faults of embracing new products. We talk about Brazing with Solder Rings, Thermal …
This episode is to help those techs new to the trade who never had a good grasp on thermodynamics as well as more seasoned techs who want a quick refresher.
Bryan talks to Leslie about the mysterious and magical TXV valve.. What it is, what is does and why they get misdiagnosed so often. Thanks to Daniel Anderson for making this his first episode suggestion.
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