Cover art for podcast HVAC School - For Techs, By Techs

HVAC School - For Techs, By Techs

471 EpisodesProduced by Bryan OrrWebsite

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

episodes iconAll Episodes

Review Of Vacuum For Service Revisted

October 14th, 2021


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

Electric Heat - Short 128

October 12th, 2021


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 …

Introducing Refrigeration Mentor w/ Trevor

October 7th, 2021


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 …

Effective IAQ Measurement & Control w/ Haven

October 5th, 2021


In this podcast, Ben from HAVEN IAQ, Kaleb, and Bryan discuss how to control indoor air quality and take meaningful, accurate measurements.



College vs. Skilled Trades W/ Ryan Gorman

September 30th, 2021


Ryan Gorman comes on the podcast to discuss the differences between a college education and early career opportunities in the skilled trades. 


Many …

A2L Refrigerant Facts w/ Jason Obrzut

September 23rd, 2021


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 …

Dealing with Difficult People at Work

September 16th, 2021


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 …

The ACCA Manuals w/ Ed Janowiak

September 9th, 2021


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 …

Money Conversations for Techs

September 2nd, 2021


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 …

Sleeve vs. Ball Bearings - Short 127

August 31st, 2021


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 …

Horizontal Scroll Compressors w/ Trevor

August 26th, 2021


In today’s podcast, Trevor Matthews from Emerson talks about horizontal scroll compressors. Throughout the podcast, we refer to Bulletin AE4-1338 …

Buck & Boost Autotransformers - Short 126

August 24th, 2021


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 …

An Effective IAQ Process w/ John Ellis

August 19th, 2021


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. …

Caring for Technician Mental Health

August 18th, 2021


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 …

Troubleshoot the System! w/ Jim Bergmann

August 12th, 2021


In today’s podcast, Jim Bergmann talks about troubleshooting the entire system. He takes a holistic approach to the art of troubleshooting, NOT just …

How to Measure Total System Airflow w/ Steven

August 5th, 2021


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 …

HVAC/R Career Advancement - Short 125

August 3rd, 2021


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 …

Mini-Split Controls Strategy w/ METUS

July 29th, 2021


In today’s podcast, Bryan and a team of Mitsubishi Electric Trane HVAC US (METUS) managers (Mike Schaefer, Charles Miltiades, and Sly Grimm) discuss …

Key System Performance Factors - Short 124

July 27th, 2021


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, …

Copeland Scroll Compressor Multiples for Air Conditioning w/ Trevor

July 22nd, 2021


In today’s podcast, Trevor and Bryan discuss Copeland Scroll Compressor Multiples for Air Conditioning. “Multiples” refer to equipment setups with …

Margin, COGS, Markup & Profit Confusion - Short 123

July 20th, 2021


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, …

Planning and Layout of HVAC Projects

July 15th, 2021


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 …

Startup vs commissioning - Short 122

July 13th, 2021


In today’s short podcast, Bryan explores the differences between startup and commissioning.


Startups typically involve going in during the …

How to Make Mentorship Work w/ Eric Kaiser

July 8th, 2021


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 …

Alternatives for College That Parents Should Consider

July 1st, 2021


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 …

Triple Evacuation - Short 121

June 29th, 2021


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 …

How to Teach the Physics of Everyday Life

June 24th, 2021


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. 


Be Careful With Cold Tanks - Short 120

June 22nd, 2021


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 …

Dehumidification Facts w/ Nikki

June 17th, 2021


In today’s podcast, Nikki and Bryan discuss dehumidification. They cover the relationship between cooling and dehumidification, humidity control, and …

TXV Troubleshooting w/ Trevor

June 10th, 2021


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 …

CO2 Architecture

October 29th, 2020


Don Gillis joins us again to talk more about common types of CO2 systems and how they differ

Heat Pumps in Cold Climates

October 27th, 2020


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 …

Demand Cooling + Liquid and Vapor Injection

October 22nd, 2020


Trevor Matthews is back and dropping more compressor knowledge on us

Intro to CO2 w/ Don Gillis

October 15th, 2020


My man Don Gillis w/ Emerson joins us to teach us the basics of CO2 refrigerant

What is Correct Airflow?

September 28th, 2020


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.

Digital Compressor Facts

September 24th, 2020


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.

Small Refrigeration Talk

September 21st, 2020


Joe and Eric join us and we have a general conversation about small self-contained refrigeration units including residential and commercial.

Single Pole Contactors & Crankcase Heaters

September 17th, 2020


Kaleb, Joe and Eric join us again to discuss some myths about single pole contactors as well as some weird crankcase heater wiring configurations

Electronic Expansion Valves

September 14th, 2020


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.

Introduction to CoreSense

September 10th, 2020


Trevor Matthews from Emerson Canada joins us again to talk about CoreSense by Emerson


Refrigeration Software (CoreSense Protection, Diagnostics & Performance Alert) –

How to Get The Most From Online Education

September 3rd, 2020


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

Preventing and Troubleshooting Compressor Issues

August 27th, 2020


Our good friend Trevor Matthews from Emerson Canada joins us to talk about compressors, why they fail, how to prevent failures and how to …

Duct Installation Best Practices

August 20th, 2020


In this episode, Neil Comparetto from Comparetto Comfort Solutions joins Bryan and Kaleb to discuss what he has learned about installing duct systems …

Troubleshooting & Commissioning Q&A

August 13th, 2020


In this episode Kaleb, Joe, Eric and Bryan answer some questions from Facebook

Combustion Analyzer Facts and Mistakes

July 30th, 2020


Our Main man Bill Spohn joins us again to talk specifically about combustion and how to select and properly utilize an analyzer

Air Flow Hood Considerations w/ Dwyer

July 23rd, 2020


Jaden Lane joins us to discuss some best practices when using hoods and how the Dwyer Smart is innovating in the hood space

3D Duct Modeling For Residential

July 16th, 2020


Russ King joins us to discuss simplifying duct design for residential contractors

How to Effectively Choose and Use Test Instruments

July 9th, 2020


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

VRF and VRV Piping and Installation Overview

June 25th, 2020


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.

Time Management for HVAC Techs

June 18th, 2020


Bryan and Eric Mele have a relaxed conversation on how to manage time on the job and in life

Impacts of Compression Changes - Short #94

May 12th, 2020


Bryan talks through the impacts of altering compression and airflow and some of the ramifications

Superheat and Subcooling Basics

May 7th, 2020


We ONCE AGAIN talk superheat and subcooling to help people who struggle with the concept get a better grasp on it

Psychrometric Basics

April 30th, 2020


Bryan and Kaleb talk about the properties of air and discuss dry bulb, wet bulb, dew point, and relative humidity

A Huge Pricing Mistake - Short #93

April 28th, 2020


Many contractors confuse markup with margin and it can lead to the difference between being profitable and losing it all.

A Frank UV discussion w/ Ron Saunders from Fresh-Aire UV

April 23rd, 2020


Ron comes on and answers questions about UVC and pulls no punches

Q&A with Richard, Ross and Evan Trethewey

April 19th, 2020


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 …

Blower Doors ACH50 vs. Natural Infiltration

April 16th, 2020


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 …

Real Indoor Air Quality w/ Nikki from UltraAire

April 9th, 2020


Nikki joins us to talk about how humidity impacts indoor health and some ways to really make our indoor air more healthy

Is The Future of Air Conditioning Self Contained Propane Chillers?

April 2nd, 2020


Michael Housh and Jim Bergmann join Bryan to look into the crystal ball and design the PERFECT residential system

Filter + Fan = IAQ Revolution

April 1st, 2020


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

The Inverter Voltage Problem - Short #90

March 31st, 2020


In this episode Bryan talks about the steady state overvoltage issue that can take out inverter boards and what to do about it

Testing A/C Vitals w/ Jim Bergmann

March 26th, 2020


Jim with MeasureQuick and Michael Housh join Bryan to talk about the new vitals mode in MeasureQuick and how it works

Short #89 - Liquid Line Temperature

March 24th, 2020


How to use liquid line temperature on split a/c systems as a quick diagnostic indicator

Short #88 - Science vs. What Works

March 10th, 2020


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 …

New Business Processes #LIVE

March 6th, 2020


In this episode, we discuss some of the new… possibly strange-sounding business processes we are implementing at Kalos in 2020 and why.

A Groundbreaking Motor Technology

March 5th, 2020


Ben with Infintium Electric comes on to tell us more about his super innovative PCB motor technology that we saw at AHR 2020

Refrigerant Management Strategies w/ Rick Roland

February 27th, 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

New Refrigerants from Honeywell

February 26th, 2020


Chris LaPietra, vice president and general manager, Honeywell Stationary Refrigerants joins us to talk some new releases from Honeywell and refrigerants in general

EPA Myths and recovery Best Practices #LIVE

February 21st, 2020


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

News from NATE w/ Gurminder

February 20th, 2020


Gurminder Sidhu joins us from NATE to talk about what NATE is all about and some of the new changes and improvements

HVAC Design Mythbusting #LIVE

February 17th, 2020


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.

AHR 2020 Roundup from the Floor

February 12th, 2020


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 …

Live w/ Mike from Refrigeration Technologies

February 8th, 2020


Mike from Refrigeration Technologies talks to us about his journey in business, some new and old products and how well Refrigeration Technologies is …

Richard w/ This Old House Shares His Story

February 6th, 2020


Richard Trethewey from This Old House joins Bryan on the podcast and tells his incredible story and shares some encouragement and laughs.

Micron Gauges - Products by Pros

February 3rd, 2020


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 

What …

Connecting Stem and HVAC w/ Rachel Kaiser

January 23rd, 2020


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

Short #87 - Our Install Reminders

January 21st, 2020


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 …

Reversing Valve Diagnosis & Replacement w/ Kaleb

January 16th, 2020


In this face to face discussion Bryan and Kaleb share some tips for diagnosing and replacing reversing valves

Pool Heater Talk #LIVE

January 12th, 2020


In this live episode, we talk through gas pool heaters and pool heat pumps. How they work and common issues.

R290 Facts and Service w/ True Refrigeration

January 9th, 2020


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

Codes and Failed Inspections #LIVE

January 2nd, 2020


We talk about common causes for failed inspections both broadly and with some specifics


December 20th, 2019


We have four techs join us to talk common furnace issues and best practices

Mixed Air Temperature w/ David Richardson

December 19th, 2019


David Richardson with NCI joins us on the podcast to talk mixed air temperature and more

Short #84 - Power Passing vs. Consuming

December 17th, 2019


A quick conversation on using a voltmeter to measure “voltage drop” across loads and switches and some of the differences

Impactful HVAC/R Instruction

December 12th, 2019


Ty Brannaman from NTI comes on the podcast to share his passion for teaching as well as his approach to being an impactful educator

Short #83 - Practical Safety Improvements

December 10th, 2019


A quick look at Bryan’s take on practical safety improvements and the safety year in review at Kalos

Descaling Large Equipment

December 5th, 2019


Tim Fregeau from Goodway joins us and talks about descaling best practices and why it matters to you.

Heat Pumps, Charging & Defrost #LIVE

December 1st, 2019


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


November 28th, 2019


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.

Short #81 - Air vs. Nitrogen vs. Oxygen

November 26th, 2019


In this short we discuss the differences between these gases and why only nitrogen is to be used for purging, flowing and pressurization

Inverter Driven Systems & Over-Voltage #LIVE

November 24th, 2019


In this LIVE episode we talk about diagnosing inverter systems and some of the issues and solutions for overvoltage

High Efficiency Gas Furnaces, Common Issues w/ Jim Bergmann

November 21st, 2019


Jim is back taking about common faults with high efficiency 90+ Condensing Ga furnaces and their installation

Short #80 - 3 Differences Between Followers and Leaders

November 19th, 2019


There is nothing wrong with being a follower but if you are ready to move to leadership here are my tips

Ductless and VRF - Good, Bad & Ugly #LIVE

November 16th, 2019


So great live guests join to discuss the advantages, disadvantages and challenges of ductless & VRF

Floating Head w/Jamie Kitchen

November 14th, 2019


Jamie is back on the podcast talking about the merits and pitfalls of floating head pressure and why you might care

Short #79 - Circuit Breaker Facts

November 12th, 2019


In this short episode Bryan talks about breakers, why they trip what they do and some diffent types and considerations

The Lost Art of Steam - Revisited

November 7th, 2019


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.

What Makes a White Shirt Tech #LIVE

November 4th, 2019


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

Callback Prevention Principles

October 31st, 2019


Bert joins Bryan to talk about what he's learned to help prevent the dreaded callback

Short #78 - 7 Tips for Newbies

October 29th, 2019


IF you are new to the HVAC trade here are 7 things to apply to help you win

Why is a Power Quality Meter Useful? w/ Jim Bergmann

October 24th, 2019


Jim is back to talk about power quality meters and what they are good for as well as how they are used

Short #77 - What Causes Capacitors to Fail

October 22nd, 2019


We talk through (once again) what REALLY causes capacitors to fail and what to do about it

Commercial PM Best Practices #LIVE

October 20th, 2019


Eric Mele, Eric Kaiser and John Oaks join us to talk about commercial PMs and what matters most

The Skills Gap and Training #LIVE

October 17th, 2019


In this live podcast from CASTBOX we discuss how we are going to get more people into and trained in the HVAC/R trade

Who is Responsible for Proper Sizing?

October 17th, 2019


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 …

Short #76 - The Freon Sniffer (A True Story)

October 15th, 2019


In this true story from my teen years you learn what inspired me to become an HVAC/R technician (Maybe)

How to Use a Combustion Analyzer w/ Jim Bergmann

October 10th, 2019


In this podcast Jim talks through the process of combustion analysis using Accutools BluFlame

Short #75 - Stop Duct & Unit Sweating

October 8th, 2019


Duct and air handler sweating is a common issue in humid climates. Bryan talk about what causes it and what to do about it.

Stop Designing Ducts Backwards w/ Alex Meaney

October 3rd, 2019


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 …

The Dangers of Like for Like Tonnage

September 26th, 2019


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 …

Gauges, Probes & NIST #LIVE

September 24th, 2019


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 …

Short #73 - Ambient CO

September 24th, 2019


What is ambient CO? Why does it matter and what do you do to check for it.

Geothermal System Considerations w/ Michael Housh

September 19th, 2019


My buddy Micahel Housh joins us to discuss his years of experience w/ Geothermal Heat Pumps

Short #72 - Vapor Diffusion

September 17th, 2019


What is water vapor diffusion and why does it matter to the HVAC technician?

Difficult Customers #LIVE

September 15th, 2019


In this live conversation, we discuss some real-life difficult customer situations and what we learned along the way

Refrigeraton Case Controllers w/ Sporlan

September 12th, 2019


Henry Papa from Sporlan joins us in person to talk about refrigeration case controllers

Short #71 - Brazing, Is Patching OK?

September 10th, 2019


We taking about brazing, soldering and if patching is an allowable repair

Grocery Refrigeration Talk #LIVE

September 6th, 2019


In this live episode we have a fun conversation talking with Nathan Orr and Kevin Compass about Grocery Refrigeration

Manual J Battle with Ed and Nathan

September 5th, 2019


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

Short #70 - Is Testing Capacitors Under Load Better?

September 3rd, 2019


We discuss under load vs. bench capacitor testing and which is better

ECM Motors A-Z w/ Eric Kaiser

August 29th, 2019


Eric joins us again and this time we are talking ECM motor types, history, diagnosis and failure prevention

Refrigerants to Replace R22 #Live

August 29th, 2019


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

Short #69 - Trap & Vent

August 27th, 2019


The practice and importance of trapping and vent condensate drains.

Home IAQ w/ Jim Bergmann #Live

August 22nd, 2019


We talk through real IAQ solutions live with Jim Bergmann and others

How to Charge an AC

August 22nd, 2019


Greg of AC Service Tech on YouTube joins me on the podcast to talk refrigerant charging as well as his excellent new book

Short #68 - Electromagnetism & The Aether

August 20th, 2019


In this short and nerdy science talk I discuss how electromagnetism impacts every part of our lives

Moisture & Humidity Problems #Live

August 19th, 2019


In this first live episode we discuss moisture and humidity issues in HVAC


August 15th, 2019


Eric Mele and Joe Shearer join Bryan to discuss the challenging issue of diagnosing and rectifying non-condensibles in the circuit

Short #67 - Defrost Termination and Failsafe

August 13th, 2019


In this episode we quickly cover the words termination and failsafe and what they mean in relation to refrigeration defrost

Acid and Contaminants Testing w/ John Pastorello

August 8th, 2019


John Pastorello from Refrigeration Technologies joins us to talk about testing oil and refrigerant for contamination and what each is good for.

Short #66 - Water in My Tools!

August 6th, 2019


What to do when your tools get wet

Special Episode - The SpeedClean Story

August 4th, 2019


Mike Hardy from SpeedClean joins us to talk about how SpeedClean got started and why engineered solutions should be considered by all contractors

Crazy Filter Drier Ideas w/ Eric Mele

August 1st, 2019


Eric and Bryan talk through some non-standard ways of thinking about filter driers and how they can be installed.

Short #65 - Is R22 Becoming Illegal

July 30th, 2019


There are a lot of ads and news articles clamining that homeowners are in trouble and the R22 is becoming illegal. Is that true?

Study to Test vs. Study to Apply w/ Eric Kaiser

July 25th, 2019


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.

Short #64 - Diagnostic Duct Design

July 23rd, 2019


For a technician who comes across a customer balancing complaint, How do you think about and help to solve the problem?

Ceiling Cassettes w/ Eric Mele

July 18th, 2019


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

Short #63 - I've Been Doing This 30 Years

July 16th, 2019


The most common defense for bad practices and how to STOP IT

Make up air W/ Devin Skipper

July 11th, 2019


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

Effects of Dewpoint on Coil TD and More MQ Updates w/ Jim B

July 4th, 2019


Jim is back and gives us a full rundown on recent MeasureQuick updates and what to expect in the future.

Short #61 - EPR vs. CDS Valves

July 2nd, 2019


EPR and CDS valves are often both considered Evaporator Pressure Regulators but they really function quite differently

Blends and Midpoint w/ Jim Bergmann

June 27th, 2019


Jim talks about dew point, bubble point and midpoint, the purpose of each and why MQ displays midpoint on the gauges

Short #60 - How Cold Should it Get Inside?

June 25th, 2019


The old "20 degree rule" has come up many times and it's time to put to rest

Suction Pressure in Market Refrigeration

June 20th, 2019


Nathan Orr is back and we discuss suction pressure in market refrigeration and how rack techs think about it differently than HVAC

Can a Residential Tech Transistion to Market Refrigeration?

June 13th, 2019


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 …

Preventing and Mitigating Legionnaires' disease

June 6th, 2019


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.

Women in HVAC/R

May 23rd, 2019


Colleen Keyworth from Women in HVAC/R joins us to talk about the importance of getting women excited about our trade.

AirFlow Testing as a Customer Service Tool

May 16th, 2019


David Holt from NCI stops by to talk about airflow and its importance as a customer service tool for the HVAC trade

Residential Air Balancing & Flow Hoods

May 9th, 2019


Steve Rogers from the Energy Conservatory joins us to talk residential air balancing and flow hood accuracy

Leak Detection w John Pastorello

May 2nd, 2019


John Pastorello from Refrigeration Technologies is back on the podcast to talk leak detection procedures from start to finish.

Hybrid Boiler Plants w Jim Devlin

April 25th, 2019


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

Short #51 - Separate Gauges

April 23rd, 2019


Do you need different gauges for each refrigerant? We discuss.

Parking BTUs with Buffer Tanks (Part 2)

April 19th, 2019


In this two part interview Moe Hirsch goes deep an wide on buffer tanks and strategies for "parking" btus in hydronic systems

Parking BTUs with Buffer Tanks (Part 1)

April 18th, 2019


In this two part interview Moe Hirsch goes deep an wide on buffer tanks and strategies for "parking" btus in hydronic systems

Recovery Best Practices w/ NAVAC

April 11th, 2019


Kevin Mayer from NAVAC comes talks about recovery and ways to make it work better and more safely for you.

System Oversizing & Independent Consulting w/ Genry Garcia

April 4th, 2019


In this episode I talk with tech, contractor and consultant Genry Garcia about his experiences in helping other contractors in South Florida.

Can Manufacturers Specs Be a Crutch?

March 28th, 2019


Bert and Bryan discuss the commonly repeated phrase “refer to manufacturers specs” and when it works and when it feels like a crutch.

Short #47 - Solar

March 26th, 2019


By request, Bryan talks some solar system basics

Work-Life Balance, Real Talk w/ Bert

March 21st, 2019


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.

Intro to Boilers & Radiators w/ Moe Hirsch

March 14th, 2019


In this episode we talk with Moe about the world of hydronic heating. We discuss some fundamentals and talk various boiler and radiator types

Short #45 - OEM Parts

March 12th, 2019


Should you ONLY use OEM parts? fact or fiction.

Special - Soft Skills Top Tips w/ Andy Holt

March 8th, 2019


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

Controlling Humidity For All Climates

March 7th, 2019


Bryan covers some of the facts about humidity and how to keep it under control in all climates

Short #44 - Myth - Time as a Tech Equals Pay

March 5th, 2019


In this episode we talk about the myth that time at a job equals or deserves pay increases

Chiller and Cooling Tower Cleaning w/ Goodway

February 28th, 2019


Mark from Goodway talks about chiller and cooling tower cleaning best practices and techniques

Short #43 - Is IAQ a Joke?

February 26th, 2019


In this episode we address the myth that IAQ is a joke and how to think about IAQ correctly

Propane Refrigerant - A Tech Perspective w/ Chris Stephens

February 21st, 2019


Chris Stephens from HVACR Videos joins us to talk about his experiences with and perspective on R290 (propane) refrigerant in restaraunt refrigeration

Short #42 - Myth - Flame Rods

February 19th, 2019


In this podcast we discuss the common myth about flame rod / semsor / rectification cleaning

Installing Central Air From Scratch w/ Eric M

February 14th, 2019


Eric and I discuss his new home and how he plans to install new central air the Eric Mele way.

Short #41 - Context in Education

February 12th, 2019


We talk through measuring amperage on a blower and condensing fan motor and why you may be measuring inaccurately resulting in a misdiagnosis.

VRF/VRV Design w/ Jordan Cummings

February 7th, 2019


In this episode we review application based system selection considerations for VRF/VRV systems

Short #40 - Specifically Relative

February 5th, 2019


We talk about Specific gravity, relative density and why it matters to a tech

R290 (Propane), What you need to know w/ Embraco

January 31st, 2019


In this episode we speak with Embraco about R290 (Propane) refrigerant, Hydrocarbons and what you need to know about them.


Short #39 - Tricky Amperages

January 29th, 2019


We talk through measuring amperage on a blower and condensing fan motor and why you may be measuring innaccurately resulting in a misdiagnosis

Beacon 2 Refrigeration Talk Through

January 24th, 2019


In this service manual talk through episode we discuss the Heatcraft Beacon 2 refrigeration system and what it entails

Short #38 - Low Ambient Cooling

January 22nd, 2019


This episode covers the why and the how of low ambient cooling and refrigeration

VRF in Real Life w/ John Oaks

January 17th, 2019


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

Short #37 - The Trade Skills Gap a Manifesto

January 15th, 2019


This is a voice over audio presentation of the article of the same title on the website

Furnace Sequence Of Operation

January 10th, 2019


Jason Obrzut come on and talks us through his furnace sequence of operation training 

Take It Slow, It's Gonna Blow

Short #36 - Stack Effect

January 8th, 2019


We talk through stack effect. What it is and what issues it causes.

The Future of App Based Diagnosis w/ Jim Bergmann

January 3rd, 2019


Jim gives us a year end review of all that is happening at MeasureQuick with Redfish, BluFlame, BluVac, Supco, Testo and Fieldpiece

Short #35 - Resolution, Precision & Accuracy

January 1st, 2019


What is the difference bewteen accuracy, precision and resolution

Ventilation w/ John Semmelhack

December 27th, 2018


John guides us through all aspects of ventilation and ventilation design with a review of point ventilation, ASHRAE 62.2, whole home ventilation …

Gas & Combustion Tools w/ Bill Spohn

December 20th, 2018


Bill and Bryan discuss manometers, combustible gas detectors, personal CO detectors, draft gauges and combustion analyzers

Short #34 - Heat Pumps

December 18th, 2018


In this episode Bryan speed talks through all the basics of a heatpump and how it functions.

EPA Regulation Uncertainty w/ Jason Obrzut

December 13th, 2018


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

AMA#1 - State of the HVAC School Union

December 6th, 2018


In our first ever ask me anything podcast we talk about the trade as whole and answer random questions about Kalos and myself

Short #32 - "It's Undersized"

December 4th, 2018


Here are some things to consider before replacing that old A/C with a bigger one

Short #31 - U-Factor and R-Value

November 27th, 2018


What is the difference between R-Value and U-Factor and why should you care?

Friction Rate and Duct Design w/ Dr. Bailes

November 21st, 2018


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 …

Critical and Triple Point w/ Rusty Walker

November 15th, 2018


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

Short #30 - Braze or Solder Anything

November 13th, 2018


We cover what you need to consider before soldering or brazing any type of joint

Hot Gas Reheat Dehumidification w/ Eric Mele

November 8th, 2018


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

Short #29 - 3 Quick Tips to Level Up Overnight

November 6th, 2018


This episode Bryan covers three things you can do to make you a much better tech tomorrow and everyone will notice

Combustion Analysis w/ Jim Bergmann

November 1st, 2018


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

Short #28 - The Magic Heat Absorber

October 30th, 2018


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

Do you even CAZ test? w/ Jim Bergmann

October 25th, 2018


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

Short #27 - Commissioning Mindset

October 23rd, 2018


In this episode we talk about what it REALLY takes to setup and commision a new system properly

3 Flavors of CO2 w/ Rusty Walker

October 18th, 2018


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.

Short #26 - Temperature Mistakes

October 16th, 2018


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.

Analog & Digital Manifolds w/ James Bowman

October 11th, 2018


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

Short #25 - A Costly Screwup

October 9th, 2018


In this short episode we share some quick tips about keeping panels and insulation in place

Are Refrigerant Additives OK?

October 4th, 2018


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.

Short #24 - Hard vs. Soft Copper

October 2nd, 2018


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

How to Make a Flare That Won't Leak

September 27th, 2018


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

Chilled Water Air Handlers

September 20th, 2018


We talk about chilled water air handlers, their valve configurations and some key things to look out for

Short #23 - Intangible Soft Skills

September 18th, 2018


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 …

Refrigeration Temperature Controls w/ Chris Stephens

September 13th, 2018


Chris Stevens from HVACR Videos on Youtube comes on and talks some refrigeration temperature controls basics

Small Refrigeration Maintenance Procedure

September 6th, 2018


Eric Mele is back and we go over some best practices and tips for performing a quality clean and check on small refrigeration systems

Vacuum Pump Basics w/ Kevan Mayer

August 29th, 2018


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

Short #20 - Tips for Service Valves

August 28th, 2018


Some tips for HVAC/R service valves and caps for new technicians

Hard Shut Off TXVs

August 23rd, 2018


Jamie Kitchen is back on the podcast talking all about TXV / TEV bleed and non-bleed and why it matters to your compressor

Short 19 - Superheat, Evaporator vs. Compressor

August 21st, 2018


We cover why both compressor and evaporator superheat matter as well as address some common confusion related to each.

Pulling a Vacuum 2.0 w/ Jim Bergmann

August 16th, 2018


We talk evacuation, conductance speed, microns, core removal, decay rate and all that other nerdy vacuum stuff with Jim Bergmann

Short 18 - Can You Freeze Water in a Vacuum?

August 14th, 2018


Can you really freeze water in a vaccum by pulling down too fast? what should you do about it?

What We Learn From HVAC/R Tradeschool

August 9th, 2018


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

Water Source - The Water Side w/ Eric Mele

August 2nd, 2018


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 …

Short 16 - Air Velocity is Useful

July 30th, 2018


In this episode Bryan covers how to measure air velocity directly at a return or supply and what it tells you

Intro to Water Source Heat Pumps w/ Eric Mele

July 26th, 2018


Eric Mele walks us through the components of water source heat pumps, how they work and what to look for

Commercial vs. Residential w/ AK HVAC

July 12th, 2018


A conversation about the pros and cons of commercial vs. residential with Andrew Greaves from AK HVAC on Youtube

Short 13 - 3 things the condenser does

July 10th, 2018


Three things done in an HVAC/R condenser and what it means

Short 12 - The First 4 Rules to Learn

July 5th, 2018


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.

Coil Cleaning with John Pastorello

July 3rd, 2018


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 ERC213 Parameters Review

June 27th, 2018


Danfoss ERC 213


10:30 – Key Features

10:41 – Voltage Protection

10:56 – Compressor Protection

14:43 – Applications

15:15 – App 0 No …

Short #11 - Superheat, The True Meaning

June 25th, 2018


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"

How to Go From Tradesman to Franchise Empire

June 21st, 2018


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 …

PCO Air Purification with Jon Bennert

June 19th, 2018


Jon Bennert with Air Oasis talks about Photo-catalytic Oxidation air purification, how it works and what it does. 

Short #10 - Air Has Weight and Takes up Space

June 15th, 2018


In this episode we talk air volume, density, weight and mass and why it matters to you

Special EP Inverter Equipment With Ralph Wolf

June 12th, 2018


Ralph Wolf comes on and talks inverter systems, Mitsubishi, Bosch and what he’s up to nowadays

Basic Refrigerant Circuit Revisited (Part 2)

June 7th, 2018


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 …

Basic Refrigerant Circuit Revisited (Part 1)

June 5th, 2018


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 …

Making of a TV Show About Home Performance

May 31st, 2018


I talk with Corbett Lunsford about his new show about home diagnosis on PBS coming this Winter

Sealing Ducts From the Inside w Sean Harris

May 29th, 2018


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

Short #9 - Commercial Maintenance

May 24th, 2018


5 things residential techs need to consider when tasked with doing a PM on a commercial system.

Air Filters, They are More Complex Than You Knew w/ Lee Andrews

May 21st, 2018


Lee Andrews with Andrews Filters talks about the complicated and important topic of air filtration and why it matters to you and your customers

How to Repair Aluminum Leaks

May 15th, 2018


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 …

Short #8 - Resistance Up, Amps Down

May 14th, 2018


This short episode covers the most misunderstood portion of Ohms law explained masterfully from 1921.

Universal Digital Refrigeration Controls and the Danfoss ERC 213

May 10th, 2018


Jamie Kitchen talks about refrigeration controls and applications as well as the Danfoss ERC213 universal digital controller Find out more at …

Manifolds vs. Probes Battle w/ Adolfo Wurts

May 8th, 2018


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 …

HVAC/R Conductor, Breaker and Fuse Selection

May 7th, 2018


How to properly size HVAC/R wires and breakers without confusion

Humidity Talk w/ Johnathan Jones

May 1st, 2018


Johnathan Jones from Clean Comfort, UntraAire and Thermastor talks to us about dehumidification, ventilation and more...

Short #7 - A Moisture Problem

April 27th, 2018


A dirty M word replaced with another M word that gets to the root of the problem

Prevent Compressor Murder Part 2 w/ Emerson

April 24th, 2018


Part 2 of the discussion with Trevor Matthews with Emerson about causes of air conditioning and refrigeration compressor failure and the causes …

Short #6 - Energy? Compared to What? EP1

April 20th, 2018


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.

Prevent Compressor Murder Part 1 w/ Emerson

April 17th, 2018


We talk with Trevor Matthews with Emerson about causes of air conditioning and refrigeration compressor failure and the causes Verifying System …

Intro to Manual J & S w/ Jack Rise

April 12th, 2018


We talk with system and duct design educator Jack Rise about ACCA Manual J load calculation and Manual S system selection

Low Voltage Diagnosis Basics w/ Bill Johnson

April 3rd, 2018


Bill Johnson shares his practical tips to make low voltage electrical diagnosis easier

Introduction to Walk-in Refrigeration

March 28th, 2018


Eric Mele talks us through some common characteristics of walk-in freezers and refrigerators

Short #5 - Wire Routing & Connection

March 27th, 2018


In this episode we cover some basic best practices for wiring and wire connections

Furnace Commissioning Part 2 w/ Jim Bergmann

March 21st, 2018


Jim covers the basics of furnace commissioning in more detail with some common sense practices

Short #4 - Blower Taps

March 19th, 2018


How do you set blower taps anyway?

Furnace Commissioning Part 1w/ Jim Bergmann - Input / Rise

March 15th, 2018


Jim covers setting up furnace input, clocking the meter, setting temperature rise and much more

Short #3 - Saturation

March 12th, 2018


This episode is about saturation and what it means including boiling, evaporation and condensing.

Measuring Air For Techs

March 8th, 2018


In this discussion with Bill Spohn from we cover the practical steps and tools for YOU to start measuring airflow today... if not …

Short #2 - Delta T

March 7th, 2018


Delta T (Evaporator air temperature split) what it is, what it means and how to avoid some common pitfalls

Beating the Ego, Ignorance and Insecurity Monster w/ Andrew Greaves

March 1st, 2018


In this simultaneously heavy and lighthearted discussion, Bryan Orr and Andrew Greaves discuss ego, Dunning Kreuger, insecurity and apprenticeship in …

Short #1 - Refrigerant Circuit Basics

February 22nd, 2018


In this short episode we review the basics of the refrigerant circuit. Compressor, Condenser, Metering Device and Evaporator Find out more at …

Bi-Polar Ionization and IAQ w/ Jon Bennert

February 21st, 2018


Jon Bennert from Air Oasis teaches us about PCO and Bi-Polar air purification and how it works.

Reach In Refrigeration w/ Eric Mele

February 14th, 2018


A summary of reach in coolers (refrigerators), freezers and wine coolers with some mindset and technical tips

Building Performance for HVAC Techs w/ Stephen Rardon and Neil Comparetto

February 6th, 2018


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.

Defrost in Commercial Refrigeration w/ Dick Wirz

February 1st, 2018


Author of commercial refrigeration for air conditioning technicians, Dick Wirz talks to us about refrigerator and freezer defrost strategies.

Bonus - What you missed at AHR w/ Bill Spohn

January 31st, 2018


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.

Intro to Pneumatic Controls w/ Jim Loring

January 18th, 2018


We talk to west coast commercial tech Jim Loring about pneumatic controls and VAV

Floating Suction and Head and Rack Refrigeration w/ Jeremy Smith

January 15th, 2018


Jeremy Smith goes over floating suction and floating head refrigeration strategies as well as some more on low ambient operation.

Dehumidification Settings and Wiring with the Ecobee thermostat

January 8th, 2018


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

What it Takes to be an Excellent Residential Service Tech

January 2nd, 2018


In this episode we cover the skills and traits needed to be the best residential service tech you can be.

Special Episode - How to Get a Raise, Promotion or Bonus

December 26th, 2017


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.

Single Phase, 3 Phase and Split Phase Explained

December 22nd, 2017


We discuss power distribution and some practical tips about 3 phase, single phase and split phase power.

Desiccant Dehumidification w/ Tom Peterson

December 18th, 2017


Learn about large-scale Desiccant dehumidification from the expert, Tom Peterson w/ CDI

Compression Ratio, Heat Pumps and More w/ Carter Stanfield

December 11th, 2017


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.

Using Volts and Ohms in Diagnosis

December 5th, 2017


We look at voltage and resistance, specifically using a voltmeter and an ohmmeter for diagnosis as well as a discussion of voltage drop.

Variable Speed Motors and Why They Matter w/ Jamie Kitchen

November 27th, 2017


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 …

Duct Design Facts w/ Jack Rise

November 23rd, 2017


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.

Removing Gas Meters and Heat pumps in Cold Climates w/ Nate Adams

November 17th, 2017


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.

Leak Free Systems w/ Bill Johnson

November 13th, 2017


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.

Furnaces - Introduction and History w/ Jim Bergmann

November 9th, 2017


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.

Electrical Circuits Class

November 7th, 2017


This class recording discusses transformers, ground, common, and line vs. load sides of a circuit.

Electrical Basics, How and Why Electrons Move

November 3rd, 2017


Where does electricity come from and why do electrons move? In this epsiode we talk about differential charges, sine waves and some voltage …

The Duct We Tend to Forget w/ Joe Medosh

October 29th, 2017


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 Maintenance Steps - Part 2

October 23rd, 2017


Ductless expert Jesse Claerbout talks about his best practices for maintaining ductless air conditioners and heat pumps part 2

Ductless Maintenance Steps - Part 1

October 20th, 2017


Ductless expert Jesse Claerbout talks about his best practices for maintaining ductless air conditioners and heat pumps part 1

Run Capacitor Facts You May Not Know

October 18th, 2017


In this epsiode, we cover some common misconceptions about run capacitors as well as some easy ways to test and some tips.

Bonus - The Case for Tamper Resistant Caps w/ James Bowman

October 11th, 2017


James from Rectorseal talks about the IMC codes relating to tamper resistant caps and why you may consider installing them now

Economizer Basics w/ Jerry Eavenson

October 10th, 2017


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,

A Steam Heat Primer by Dan Holohan

October 7th, 2017


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 …

The Lost Art of Steam Heating w/ Dan Holohan

October 3rd, 2017


I talk with legendary Hydronics author and trainer Dan Holohan about the history of steam heating and some practical application of old ideas. Find …

Bonus - The Spark Ranger

September 30th, 2017


The unfortunate life and times of Roy Sullivan

Electronic Expansion Valves (EEV) w/ Jamie Kitchen

September 27th, 2017


We talk about EEV's, how they work, the reason they exist as well as review the entire range of metering devices.

(Bonus) HVAC/R Industry State of the Union

September 22nd, 2017


Chris Caldwell interviews Bryan in this podcast about the industry, his business and the future.

Filter Drier Basics w/ Chris Reeves

September 19th, 2017


An overview podcast on filter driers including, suction driers, liquid driers, core driers, different media and basic applications

Nitrogen Pressures do Change with Temperature - the Basic Gas Laws

September 16th, 2017


We cover the 4 basic gas laws and how they apply to you as a technician

Bonus - Tips from a VRF Tech w/ Alex Figueroa

September 15th, 2017


Alex Figueroa is a VRF and refrigeration tech in Puerto Rico and he talks to Bryan about his experience

Ductless and VRF Diagnosis w/ John Chavez EP2

September 12th, 2017


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

Matter, Mass, Weight and Volume

September 11th, 2017


This episode covers some basics of matter that relate to HVAC/R - Matter, Mass, Weight and volume. This includes specific gravity and specific …

Ductless and VRF Diagnosis w/ John Chavez EP1

September 9th, 2017


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

Bonus - Tech Communication and "PM Specials" w/ Frank Besednjak

September 7th, 2017


Frank Besednjak talks about proper communication in conflict between techs and managers as well as the potential problem with inexpensive air conditioning maintenance specials

The Basic Refrigeration Circuit, Pressure & Enthalpy w/ Carter Stanfield

September 4th, 2017


Carter Stanfield, co-author of Fundamentals of HVACR talks the entire refrigerant circuit as well as reading and plotting a pressure enthalpy diagram

Bonus - Leak Sealants and How They Work w/ James Bowman

September 1st, 2017


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.

Commercial Refrigeration for A/C Techs w/ Dick Wirz

August 28th, 2017


Dick Wirz, author of "Commercial Refrigeration for Air Conditioning Technicians" talks about making the switch to refrigeration, Evaporator split, defrost and more...

Introduction to Ammonia Chillers w/ Camron Conlee

August 23rd, 2017


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

Scales - The Episode You've been Weighting For w/ Adolfo Wurts

August 22nd, 2017


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 …

Big Announcement - 8/21/17

August 21st, 2017


In this quick announcement I talk about the launch of the revolutionary diagnostic and data management tool MeasureQuick

Looking past the First Thing & Facial (Hair) Profiling w/ Todd Liles

August 18th, 2017


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 …

Advanced Evacuation w/ Jim Bergmann

August 16th, 2017


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...

Using Zoomlock Every Day w/ Brent Ridley

August 10th, 2017


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 …

How to Perform a Leak Detection on a Low Pressure Chiller w/ Jeff Neiman

August 9th, 2017


In This episode I talk with Jeff Neiman about chiller leak detection and SPECIFICALLY low pressure chiller leak detection Also Pipe Wiper - Testo Fall Promo - …

Special Episode - The Launch of an HVAC Industry Changing App w/ Jim Bergmann

August 4th, 2017


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 - 

Condensate Switch Codes and Practices w/ James Bowman

August 2nd, 2017


In this episode we talk condensate switch best practices and the IMC codes as well as switches for RTUs and Ductless

Bonus - Being On Call w/ Les Fork

July 31st, 2017


In this episode, we talk about being on call as a technician as well as delve into some best and worst practices.

Measuring Air Flow - Air Density and Direct Air Flow Measurement Part 2 w/ Jim Bergmann

July 24th, 2017


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 …

Bonus - Impressions From a Week as a Tech from a College Intern w/ Bill Spohn Jr.

July 24th, 2017


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 …

Measuring Air Flow - Static / Capacity & ECM Motors Part 1 w/ Jim Bergmann

July 19th, 2017


In this episode Jim Bergmann covers static pressure, measuring delivered capacity and ECM motor considerations

Brazing Basics and Tips

July 12th, 2017


In this episode Bryan talks about brazing safety, regulator settings, torch positioning, flowing nitrogen, heat control and more....

Bonus - Blue Collar Life & Experience w/ Ralph Wolf

July 10th, 2017


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 …

Drying Stuff vs. Drying Air - Humidification, Dehumidification and Ventilation

July 3rd, 2017


This episode is a rebroadcast of a very useful episode from the Corbett Lunsford's Building performance podcast at

Bonus - Restaurant Equipment "Hot Side" w/ Nick Messick

June 30th, 2017


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. - …

Building Automation Basics for the HVAC Tech w/ Phil Zito

June 28th, 2017


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. 

TXV Operation, Diagnosis and Failure w/ Jamie Kitchen

June 20th, 2017


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 …

Check The Charge Without Connecting Gauges - Part 2

June 14th, 2017


In Part 2 - Jim Bergmann wraps up the steps to check a system charge without connecting a gauge manifold

Check The Charge Without Connecting Gauges - Part 1

June 13th, 2017


In this episode Jim Bergmann lays the groundwork for checking a system charge without ever connecting a manifold.

Common Duct Design Mistakes w/ Jack Rise

June 6th, 2017


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 …

Why A/C Units Freeze w/ Eric Shidell

June 2nd, 2017


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

Blower Door Testing, Building Performance & More w/ Corbett Lunsford

May 30th, 2017


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.

Introduction to CO2 w/ Andre Patenaude

May 25th, 2017


Andre Patenaude talks to us about the basics regarding CO2 as a refrigerant, CO2 refrigeration and Transcritical booster systems. Find out more at

Bill Spohn is the Man-ometer / 10 Years of TruTech Tools

May 23rd, 2017


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.

When Will Techs Be Replaced By Robots? w/ Adolfo Wurts

May 22nd, 2017


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.

EPA 608 Changes - What You Need to Know w/ Jeremy Arling

May 17th, 2017


Jeremy Arling from the EPA discusses the new changes to the EPA 608 rules and regulations including recovery, evacuation and much more.

Evacuation 101 w/ Jim Bergmann

May 12th, 2017


In this episode, Jim Bergmann talks about evacuation, moisture, and vacuum best practices

Psychrometrics for Fun and Profit w/ Jamie Kitchen

May 8th, 2017


In this episode we talk humidity, dry bulb, wet bulb, grains of moisture, enthalpy, weather and so much more.

Measuring Voltage Drop w/ Jim Bergmann

May 1st, 2017


In this episode of The Hvac School Podcast Jim Bergmann and Bryan talk about measuring Voltage drop and how it can prevent "bandaid" repairs.

Starting Up a New Chiller w/ Jeff Neiman

April 28th, 2017


In this episode of the podcast Jeff walks Bryan through a new chiller startup step by step

Hard Start Kits, Types and Applications w/ James Bowman

April 25th, 2017


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.

Completing the Service Call Process (Part 2) w/ Les Fork

April 21st, 2017


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 Residential Service Tech Process w/ Les Fork

April 20th, 2017


This is part 1 of 2 on the soft skills practices of approaching and completing a residential service call in the best manner possible.

Electrical Myths P2 - Grounding & Bonding

April 18th, 2017


In this episode we talk about some myths related to bonding, grounding, neutral and equipment ground

Ice Machines and Tech Support w/ Nick Messick

April 14th, 2017


We talk to Nick Messick about some ice machine basics and when and when not to call tech support. 

Sometimes a #12 Wire can go on a 40A Breaker

April 10th, 2017


In this episode we talk the National Electrical Code, Wire Sizing, Breaker sizing, wire insulation rating, derating conditions and much more. 

Techs vs. Engineers w/ Bill Spohn from TruTech

April 4th, 2017


In this episode Bryan talks with Bill Spohn from TruTech about the TruTech story, some practical airflow measurement advice and tech vs. engineer …

Emergency Boiler Repair - Tech Ride along

April 4th, 2017


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. 

Ductless Installation P2 - Flaring, Charging and More

March 31st, 2017


In Part 2 Jesse and I talk about MORE best practices for installing ductless systems 

Ductless Installation P1 - Application and Drains

March 30th, 2017


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 …

Combustion Basics w/ Benoit

March 22nd, 2017


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.  

HVAC Ridealong - Leak Detection, Repair & New Smart Probes

March 22nd, 2017


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 …

Pumping Away and More w/ Dan Holohan

March 13th, 2017


Dan Holohan speaks to Bryan about his background and journey, pumping away, classic hydronics, and the difference between search and research. 

Once …

Why Maintenance Agreements Matter and How to Make Them Work w/ Ruth King

March 8th, 2017


In this episode Ruth talks about how to reduce seasonality in your HVAC business by creating a good, quality maintenance program. 

Profitability and Money Leaks in HVAC w/ Ruth King

March 7th, 2017


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. 

Should I Start My Own Business? w/ Tersh Blissette

March 6th, 2017


In This Episode Bryan Speaks with Tersh Blissett about starting a business and some important tips for operating a successful contracting business. 

Test Instruments Past, Present & Future w/ Jim Bergmann

February 28th, 2017


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 …

Condensing Temperature, Condenser Split and Subcool

February 22nd, 2017


In this podcast we talk about 

- Condensing Temperture

- Heat mode superheat

- Heat mode subcooling

- Saturation

- Condenser Split 

and much more

Air Flow - Latent, Sensible, WB, DB, RH and Static

February 16th, 2017


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 …

New Series Pilot - HVAC Tech Ride Along W/ Justin Skinner

February 11th, 2017

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. 

Hard Start Kits, Staybrite #8, Motor Ratings, AHR and Much More

February 8th, 2017


In this episode of the HVAC School Podcast we talk about -

- Carrier's bypass economizer 

- Hard Start Kits

- StayBrite #8 

- Discharge Line …

Low Ambient, Condenser Flooding and Headmaster Valves

February 3rd, 2017


Jeremy Smith talks Motormaster valves, fan cycling, slit condenser charging and much more... 

Read the companion tech tip here

Bonus - How Sibling Rivalry Built an Empire

February 1st, 2017


A quick story about how two brothers fueled and industry and an empire with raw sibling rivalry. 

Chiller Talk for the Chillerphobic

January 27th, 2017


In this episode we talk with Jeff Nieman about-

- Fan Coils

- Chiller Water

-Centrifugal Chillers

- Screw Chillers and So much more..  

Also, Bert …

Leak Detection Mindset

January 23rd, 2017


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

Recovery, Evacuation and Dehydration Facts

January 12th, 2017


In this episode we talk the ins and outs of recovery evacuation and dehydration best practices 

Building a Great HVAC Business w/ Bob Gee

January 9th, 2017


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. 

Combustion Analysis w/ Stephen Rardon

January 3rd, 2017


In this episode Bryan speaks with Stephen Rardon about gas and combustion analysis. 

For 6% off of tools go  to offer code = …

Circuit Board Diagnosis Basics

December 28th, 2016


In this unedited episode of HVAC School Bryan and Nathan talks about some basic rules for circuit board diagnosis including - 

- Isolation Diagnosis

High Efficiency Furnace Basics & Maintenance

December 19th, 2016


Bryan talks to Ben from Canada about gas furnace basics as well as high-efficiency furnace basics and maintenance. 

Cutting Compressors, iManifold and Thermal Imaging w/ Ulises Palacios

December 16th, 2016


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 …

Heat Pumps, reversing Valves and Defrost

December 5th, 2016


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. 

Relays, Sequencers, Transformers and Questionable Metaphors

December 1st, 2016


In this episode Nathan and Bryan talk about Relays, Sequencers, Transformers, Contactors, open and Closed Circuits and much more. 

Some High Voltage Electrical Basics

November 29th, 2016


In this episode we talk through some electrical basics. Including potential difference, motor leads, capacitor basics and much more. 

Gas Furnace Sequence of Operation w/ Justin Skinner

November 22nd, 2016


Bryan talks to Justin Skinner from Virginia and they talk about furnace sequence of operation and diagnosis tips. 

Prepping Non-techs for Winter

November 21st, 2016


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 …

Some Refrigeration Thoughts for A/C Techs

November 17th, 2016


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 …

Flow Nitrogen Great Again

November 10th, 2016


I talk to Tim Bagnall from Arizona in this episode and we discuss flowing nitrogen and the differences between Florida and Arizona. 

There is More to Check

November 8th, 2016


In this episode of HVAC school we cover some things you need to be checking on every service call. 

Air Filters
Electrical …

Replacing a Compressor from Start to Finish

November 3rd, 2016


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. 

The 5 Readings Every Tech Must Know Well

October 28th, 2016


Before you call your manager or a senior tech, make sure you have these 5 readings down pat. Suction Pressure, Liquid / Head pressure, Superheat, …

Basic electrical Theory

October 12th, 2016


In this episode of HVAC School, we talk BASIC electrical theory. Ohm's law, Watt's law, inductive vs. resistive loads, inductive reactance, loads, …

Diagnosis, Reconfirmation, Parts Changers and You

October 10th, 2016


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 …

The Basic Refrigeration Circuit

October 5th, 2016


In this episode of the HVAC School Podcast we talk about the basic refrigerant circuit, the compressor, Condenser, metering device, evaporator and …

Solder Rings, Thermal Imaging and My Grouchy Brother

September 29th, 2016


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 …

The Basics of Moving Heat

September 22nd, 2016


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. 

Why a TXV instead of a TEV?.. or a CSV?

September 16th, 2016


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.

Loading ...

Are you the creator of this podcast?

Verify your account

and pick the featured episodes for your show.

Listen to HVAC School - For Techs, By Techs


A free podcast app for iPhone and Android

  • User-created playlists and collections
  • Download episodes while on WiFi to listen without using mobile data
  • Stream podcast episodes without waiting for a download
  • Queue episodes to create a personal continuous playlist
RadioPublic on iOS and Android
Or by RSS
RSS feed

Connect with listeners

Podcasters use the RadioPublic listener relationship platform to build lasting connections with fans

Yes, let's begin connecting
Browser window

Find new listeners

  • A dedicated website for your podcast
  • Web embed players designed to convert visitors to listeners in the RadioPublic apps for iPhone and Android
Clicking mouse cursor

Understand your audience

  • Capture listener activity with affinity scores
  • Measure your promotional campaigns and integrate with Google and Facebook analytics
Graph of increasing value

Engage your fanbase

  • Deliver timely Calls To Action, including email acquistion for your mailing list
  • Share exactly the right moment in an episode via text, email, and social media
Icon of cellphone with money

Make money

  • Tip and transfer funds directly to podcastsers
  • Earn money for qualified plays in the RadioPublic apps with Paid Listens