All Episodes
HVAC School - For Techs, By Techs — 926 episodes
HVAC Summer Service Calls: Rushing, Mental Fog & How to Stay on Your Game
The House Always Wins! A Class On Building Science Basics - Short #294
Compressor Failures, What and Why w/ Ty
Multi Position Valves and More - Short #293
Triple Point In Water and CO2 w/ Andrew G. and Matthew T.
Washing Commercial Coils and Water Challenges - Short #292
Does AI Belong in Trades Education w/ Ty
Q&A System Oversizing - Short #291
Filters - MERV 13, Myths & More
From High Performance Medicine to High Performance HVAC - Short #290
Training The Next Generation of HVACR Technicians w/ Lenny Diaddario (Copeland)
Communications Might Be Your Best Tool - Short #289
All About Airflow Testing w/ Eric Kaiser
The Deep End with Roman Baugh: Live Call, Grounded Compressor, Mitsubishi Mini-Split
Add Duct Renovations to Your Product Offerings
Refrigeration Pulse Valves - Short #288
Residential HVAC Install Process Improvement
How to Teach Kids the Trades - Short #287
Geothermal – Back to the Basics w/ Brad Cooper
How to Make Online Training That Does Not Suck - Short #286
The Vacuum Deep Dive: Microns, Moisture, and Molecular Science
Surge Protection for HVAC - Short #285
20 Years in Family Business from the Kalos Founders
Permanent Load Reduction As a Sales Driver - Short #284
Cold Climate Evacuation Livestream - Pandora's Box
Training Refrigeration: Building Technicians Who Think, Not Just Fix - Short #283
Succession in Family Business w/ TruTech & Kalos
Adding Plumbing To Your HVAC Business - Short #282
Troubleshooting Tips and Tricks w/ Let's Be Techs
Heat In....Heat Out: All About Heat Transfer w/ Joe Joe The HVAC Man - Short #281
Building Science at the Kitchen Table: Using Testing to Close the Sale
Hard Lessons w/ Roman, Tim D., Nathan O. and ELK
Better Seen than Viewed w/ Jim Bergmann
Symposium - What Good Techs Do Different W/ Data
Heat Recovery from Data Center w/ Jeff Staub
All About ESCO with Renee Tomlinson and MeasureQuick's Latest Features with Jim Bergmann
Building Tools & the Trade w/ Tony G. from Fieldpiece
Symposium - Do Inverters Suck?
Recovery Pro Tips w/ Jesse from NAVAC
Symposium - What is the House Trying to Tell Me?
Don't Die! w/ Louise from UEi
Heat Exchanger Crack Comment - Short #280
Dehum Innovations and Essentials w/ Nikki K.
Lifetime of HVAC/R w/ John Pastorello - Short #279
Vapor Injection + Modulation Innovation w/ Copeland
TXV vs. EEV - Short #278
Electric Heat Talk w/ Bert
Vapor Diffusion Ports, Hygric Buoyancy, and Fruit - Short #277
Gas & Combustion Safety w/ Bert
WHY SQUARE FOOTAGE ≠ TONNAGE - Short #276
EPRs and Rack Refrigeration w/ Matthew Taylor
Combustion vs. Compression - Short #275
HVAC In the Northeast w/ Leo & Paul Sharkey
Superheat in Heat Mode: Why Heat Pumps Get Weird - Short #274
What We Learned From NCI Duct / Balancing Training
HVAC Systems for Architects: Making Sense of the Alphabet Soup - Short #273
Sizing Breakers and Conductors (for HVAC) – Have Things Changed?
Absorption Cooling - The Rise and Fall and Rise - Short #272
Combustion Analysis w/ Tony G.
Give Until it Hertz - The Battle Over Frequency - Short #271
Residential vs. Commercial HVAC Sales
When Ammonia Ruled the World - Short #270
Humidity, Airflow, and Refrigeration
The Finned-Tube Coil - Short #269
Are Two Are Better Than One: Understanding Tandem Compressors
The Tech That Tried to Beat the Compressor - Short #268
VRF, Ductless and Humidity Control w/ Roman
The History of the Thermostat - Short #267
Tech Support Highs and Woes w/ Roman
The Current War - Tesla, Edison & Westinghouse - Short #266
An R-454B Ramble w/ Elliot
Psychrometrics and the Magic Line - Short #265
Learning Hydronics, Boilers and Steam w/ Ray Wohlfarth
How Duct Tape Got Its Name (and Why It Shouldn't Be on Ducts) - Short #264
The Art of De-escalation
Legionnaires' Disease: The Cooling Tower Killer - Halloween Short #263
Group Training - What We Have Learned
How Air Conditioning Saved the Movies - Short #262
Just Do it! w/ Chad Simpson
Analyst vs. PM vs. Operations - Short #261
How to REALLY get S&!# Done! w/ Nate Agentis
The Hidden Cost of Killing Radiant Load - Short #260
Balance Point Explained w/ Jim Fultz
Dehumidify with a Waterfall? - Short #259
What are User Requirements? w/ ELK
Static Pressure is like Blood Pressure - Short #258
How To Be a REAL Comfort Consultant
Non-bleed TXVs and Hard Starts - Short #257
Scroll Compressors & New Refrigerants w/ Copeland
Leaky Ducts = Sweaty Houses - Short #256
Is Starting an HVAC Business Smart?
The Downside to Intentionality - Short #255
What to Do in a Nuke Disaster - W/ Bill Nowicki
Making Stuff Real - Short #254
Is HVAC School Worth It?
Split-Phase vs. 3-Phase - Short #253
IAQ for the HVAC Technician w/ Brynn Cooksey
Bi-metal & Magnetic Switches - Short #252
Fan Law 2 for Techs w/ Adam Mufich
Understanding Voltage Drop - Short #251
Understanding Airflow: David Bowie, a Used Car Lot, and a 40¢ Tool
Returns - Passive? Active? Sizing? w/ Adam & Matt
Fan of Fans - Short #250
Keys to VRF Maintenance w/ Roman
Maintenance Mindset - Short #249
IAQ, Ethical Selling & Building Better Techs w/ Brynn Cooksey
Crankcase Heaters - Short #248
The Contactor Reimagined w/ Copeland
Capacitor Testing and Replacement - Short #247
Cold Coil vs. Desiccant Dehumidification
Learning Better - Short #246
Intro to The Sigma Capacitor
What's up with Refrigerant & System Regulations w/ Copeland
TXV Troubleshooting - Short #245
Learning and Teaching GRIT w/ Ty Branaman
Band-Aids, Hacks, and Ethics - Short #244
Why VRF Compressors Die w/ Roman
No Serve Situations - Short #243
Locked Compressor Mistakes w/ Bert
When 0V Isn't Safe - Short #242
Compressor Ohm Mistakes w/ Bert
Motor Ambient Rating - Short #241
Superheat Talk w/ JD Kelly
How to Deal w/ Too Much - Short #240
Delta T Talk w/ JD Kelly
Fire Sprinklers - Short #239
The PATH to High Performance HVAC w/ David Richardson
Estimating Tips and Software
Nylog, Oil? Where does it go? - Short #238
Growing your HVAC Business the Smart Way w/ Copeland
Oversized Evap Coils? - Short #237
ERVs - What you need to know w/ Dr. Bailes
Multiple Surge Protectors - Short #236
The Cornerstones of Inverter Equipment Commissioning
Roman SpeakPipe VRF - Short #235
10 Things I've Learned In the Last 10 Years
R290 as a Drop In? - Short #234
Preventing Slugging & Flooding w/ Copeland
What is the Best Brand? - Short #233
Helping Small Owners Succeed w/ WorkHero
MeasureQuick Talks with Bert
Leak Detection Tech w/ Inficon
Live from AHR with Kalos Team Dre & Elliot
A Conversation with NAVAC at AHR 2025
VRF Tech Talk Takeover
Bill Spohn / TruTech Symposium and AHR Recap
UEI at AHR: Carbon Monoxide Safety and Combustion Analysis
What's New With Copeland at AHR
Good QC, Startup, and Punchout Processes
Static Mistakes - Short #232
Santa Fe Talks Dehumidification at AHR 2025
Catching Up with Fieldpiece and Refrigeration Technologies at AHR
From Plumber to HVAC Owner w/ Manly Arnanson
EER in the Field - Short #231
Heat Pumps / Comfort and Electrification w/ Copeland
Efficiency and Production on Larger Projects
Q&A - Circuit Board Troubleshooting - Short #230
Are you using AI to Troubleshoot w/ Refrigeration Mentor
The New Sensi Equipment Interface - Short #229
The Buyout Epidemic - Manifesto
Standing Pilot - Short #228
History of Gas Furnaces - Redux
Heat Exchangers and Temperature Rise - Short #227
Manufacturer Responsibility - Manifesto
Q&A - Tips for Moving to HVAC Sales - Short #226
White Shirt Techs - Manifesto
Q&A - Double Flares - Short #225
Can You Coat Fiberglass?
Q&A - Metacognition and More - Short #224
Redux - The Lost Art of Steam Heating w/ Dan Holohan
Q&A on Superheat - Short #223
Duct Cleaning - How Long & How Often?
Are EVs an Opportunity? - Short #222
Choosing HVAC Cleaners w/ Becca from Viper
Q&A - Evap Placement - Short #221
Can Ducts Be Cleaned Ethically?
Should I Fog or "Sanitize" My Ducts? - Short #220
Condensing Furnace Drain Guidance w/ AC Service Tech
What Can Be Done About Healthcare? w/ Ethos
How to Predict Air Flow Issues in the Sales Process
MCA is 27 and the Breaker is a 50A - Short #219
Deploying Surge Protection & Voltage Monitoring w/ DITEK
Pumping vs. Compression - Short #218
Building Tech Confidence w/ Refrigeration Mentor
Molecular Transformator - Short #217
Surge Protection Basics w/ DITEK
Q&A - Am I Toxic For Caring? - Short #216
App Based HVAC Learning
Q&A - Apps for Doing Proper Loads - Short #215
Jim Bergmann & MQ Update from NCI Summit
Q&A - System Won't Dehumidify? - Short #214
What Is Up With Blower Amps & Watts w/ Steve Rogers
Q&A - Sizing Heat Pumps for Heat Load - Short #213
Water Issues - Spidey Sense
Q&A - Cultural Diversity - Short #212
Aux Lockout & Balance Point w/ Sensi
Q&A - How to Deploy a Dehum - Short #211
Leak Detection - Spidey Sense
Q&A - Why Didn't You Notice it Last Time? - Short #210
Q&A - Vacuum Questions Answered
Q&A - Drain Traps & Static - Short #209
How Do You Ramp Up Your Team to Effectively Service and Support CO2 Applications?
Q&A - Condensating Vents - Short #208
Residential & Rack Startup and Commissioning (Part 2)
Q&A - EPR and Pressure Limiting Valves w/ Matthew Taylor
Residential & Rack Startup and Commissioning (Part 1)
Q&A - Stubborn Old Techs - Short #207
Modulating Compressors w/ Copeland
Q&A - Testing Dehumidifiers - Short #206
Improving Changeout Outcomes
Spidey Sense - Airflow - Short #205
Preventing Low Voltage Issues
STOP Overthinking! - QA Short #204
Stewarding Younger Techs
Duct Smoke Detector Facts and Wiring - Short #203
Trust the NEW Process: Embracing Evolution in HVAC Technology
Soft Start & Solar - Short #202
Make Summer Work for You w/ Matt Bruner
How do Inverter Air Conditioners Work? - Short #201
How to Size Dehums w/ Tim De Stasio
Teaching Communication Confidence - Short #200
Using Refrigerant Troubleshooting Charts w/ Joey Henderson
Wiring in Condenser Fan Motors - Short #199
Committing to HVACR Education w/ Copeland
The Chemistry of Combustion w/ Rachel Kaiser
Hoses / Types and Applications w/ NAVAC - Short #198
Have Fun With CRAC (Computer Room AC)
Rack Refrigeration Class Part 2
What's your summer triage strategy w/ Kevin Hart
Toasters, Desk Chairs and Socrates w/ Ty Branaman
Rack Refrigeration Class Part 1
What is Standard 310? w/ Eric Kaiser & Chris Hughes
Q&A - Kitchen Exhaust and Makeup Air - Short #197
Duct Leaks - Measuring, Preventing & Repairing w/ Sam Myers
Q&A - RTU Tips - Short #196
Practical Loads, Ducts and Sales w/ Brynn Cooksey
Q&A - Starting an Internal Training Program - Short #195
Bryan Orr - Humility in Thought Leadership
Q&A - Tech to Service Manager Tips - Short #194
LIVE From the ACCA Conference 2024
Positive Productive Client Communication
Condensate Drains Install & Service
EEV Types - Short #193
Heat Pump COP and Low Temp Lock Out
Motor Protection Types - Short #192
Expansion Valves - What Does and Doesn't Matter?
Q&A - How to Learn Superheat & Subcooling - Short #191
Focus of Your Goals w/ Refrigeration Mentor
When to Switch to Emergency Heat? - Short #190
Manual J in 15 Minutes?
Combustion Venting Categories - Short #189
The Gift of Security and Learning w/ Jennifer Manzo
Belt Talk - Short #188
Using the Roomulator w/ Chris Hughes
Primary & Secondary Air in Combustion - Short #187
Learning Outside the Box (Live Rebroadcast)
Making Family Business Work w/ Leilani Orr
Heat Pump Basics in Plain Language
Women in HVAC (Live Rebroadcast)
History of AWG - Short #186
A2L Update With Chemours Live from AHR
What is DX? - Short #185
Vacuum and Recovery in an A2L World with Jesse Stewart
Safe Chemicals are Good Chemicals w/ Mike Pastorello
How Better Truck Stock Makes the Trade Better w/ Jim Fultz
The VCRT Redesigned + More w/ Fieldpiece
Absolute vs. Gauge Pressure (Micron Gauge vs. Manometer) - Short #184
Is Dual Fuel the Answer? w/ Tom Buescher
NTC, PTC and Thermocouples - Short #183
How to Save Energy with Grocery Store Refrigeration
An ACCA Form You Probably Never Heard Of w/ Ed J.
Solving & Preventing Oil Issues in Rack Refrigeration
What is A2L Mitigation Going to Look Like? w/ Clifton B.
Healthy Air Supplements vs. Pillars w/ Kevin Hart
Hot Deck, Cold Deck - Short #182
Common Callbacks and Failed Inspections on Install
When Permits Are Not Needed - Short #181
What's Different About Pool Heaters w/ Bert
Farads, Micro and Pico - Short #180
All About 90% Furnaces
Analog vs. Digital Sine - Short #179
Why and How of Combustion Analysis w/ Tyler Nelson
Checking a Heat Pump in Heat Mode - Short #178
An IAQ & Dehum Case Study w/ Genry & Nikki
Creating a Business Where Everyone Wins w/ Tommy Mello
Tips for Supermarket Rack Service w/ Trevor
Traps, Vents & Drains - Short #177
Cracking the Home Health Comfort Code: IAQ's Illusory Ideals
Tubing Insulation Tips - Short #176
The New HSI Module from White Rodgers
Locked Compressors and Hard Starts - Short #175
Residential Exhaust Codes and Best Practices
Wiring Refrigerated Cases w/ Nathan & Phil
Things to Keep out of the System - Class
ACH (Air Changes Per Hour) - Short #174
Oil Return and Refrigerant Charge in VRV w/ Roman Baugh
Magical Air Cleaning Oxides? - Short #173
Can Filters Capture Viruses? - Short #172
Heat Pumps + Inverters w/ Joey H
Get Air Where it Needs to Go W/ Joey H.
Business Round Table - Tersh, Peterson, Holt
Cap Tubes and Flow Facts - Short #171
Filter Driers and System Cleanup w/ Copeland
So... What Do You Do? - Unconformed - Short #170
Pipefitting Best Practices
Filter Driers and System Protection - Short #169
Alex Meaney - HVAC Design Backwards, Forwards, and In Between
Santa Fe Panel with Andy Ask and Ken Gehring
Where to Place the Micron Gauge - Short #168
From Resi Tech to Industry Leading Refrigeration Trainer w/ Brett Wetzel
Oil Talk - Short #167
Megging a Scroll - Short #166
Being an HVAC Creative
EER, SEER and TXVs - Short #165
High Performance Maintenance w/ Jim Ball
Steve Coscia - HVAC Soft Skill Training Resources
I Installed an A2L and Lived to Tell About It!
Motor Speed - Short #164
Growing in Productivity and Confidence as a Tech w/ Refrigeration Mentor
The Art of Unteaching w/ MeanHVAC
Floating vs. Fixed Suction and Head - Short #163
Humidity Utopia w/ Nikki & Bryan
What the Flux? - Short #162
The Impacts of Duct Leakage w/ Steve Rogers
Launch of the Sensi Touch 2 Thermostat
Why and How to Create an Internal Training Program W/ Eugene S.
When Subcooling is Meaningless - Short #161
Solving Work Life Imbalance w/ Craig M
ROT Can Cause Duct Issues - Short #160
Heart of a Teacher w/ Craig M.
Saturation can be CONFUSING - Short #159
Working on Ventilation in Humid Climates w/ HAVEN
HVAC Performance Summit w/ Dominick G.
Training, Combustion and More w/ Tony G.
The Future of Refrigerants is Here With Opteon XL41
MeasureQuick is EXPLODING with Jim & Joe
Infiltration Skeletons Behind Closed Doors w/ Genry
Understanding Leak Detectors With Inficon
Making Cold Climate Heat Pumps Work w/ Copeland and White Rodgers
RTU Retrofits Facts and Considerations with JCI
Troubleshooting The Modern ECM
Training for the Future w/ Clifton & ESCO
MERV vs. Motors
Effective Filtration & More w/ John Ellis
Do Houses Need to Breathe? w/ Allison Bailes
What the Heck is High Performance HVAC w/ David Holt
Setting Realistic Customer Expectations w/ Ed Janowiak
Mini Split Install and Service Tips
CO Doesn't Leak w/ David Richardson
One HSI Furnace Control to Rule Them All w/ Jim Fultz
Using Ice to Balance Energy Consumption
We need to Pay Better! - An Audio Manifesto
Refrigerant Myth Busting w/ Dr. Chuck
The Good, Bad and Ugly of Trade Schools
Selecting Proper Cleaners w/ John Pastorello
Good Tech, Good Service Manager?
Why Aren't the Trades More Respected? w/ Kimberly Llewellyn
Getting More People Into The Trade
Becoming a Complete Tech
Inductive Current Myths - Short #158
Why it REALLY gets hot upstairs w/ Alex Meaney
Electrical Myths - Single phase is Really 2-Phase - Short #157
Pumping Away, Hydronics Changes And Electrification
Electrical Myths - Hard Starts Reduce Start Current - Short #156
The 24-Hour Technician w/ Andy Holt
Furnace Commissioning w/ MeasureQuick 2.0
Light Commercial PM Process
Electrical Myth - Wire Length Code - Short #155
Why CO2 Matters w/ Trevor Matthews
Electrical Basics
Myth: Path of Least Resistance - Short #154
Dehumidification in Shoulder Seasons w/ Nikki
Time Management - Short #153
Become a Better Mentor w/ Eric Kaiser
HVAC Measurement Types and Benefits
Ventilation and 62.2 Intro & Rant w/ Genry Garcia
Pressure Enthalpy without Tears
Total Heat of Rejection - Short #152
Hard Start vs. Easy Start
Heat of Compression - Short #151
Intro to ACCA Manual T
Net Refrigeration Effect - Short #150
Systems Thinking - Gas and Combustion
HVAC School Admin Discussion - Moderating a Successful Community
Systems Thinking - HV / LV / Condensate
Systems Thinking - Copper & Line sets
Systems Thinking In HVAC w/ Eric K
Logical Fallacies - False Cause & Strawman
Tips for Learning in HVAC/R w/ Trevor Matthews
Threaded Connection Tips - Short #149
Giving Kids The Tools For Any Job They Want
ERV & HRV - Short #148
Refrigerant Changes Coming & The Helix w/ Emerson
Pilot Controls - Short #147
Ethics - Grit and Discipline
Ethics - Integrity
Distributors and External Equalizers - Short #146
Center-Tapped Transformers - Short #145
Beer & Power Factor - Short #144
Motor Speed Facts - Short #143
Value Design in High Performance Home HVAC w/ Comfort Squad
Putting Contractor Success First w/ METUS
Retrotec - IBS 2022
Birmingham training class
Ross Trethewey IBS 2022 - Short #141
Replacing a Compressor - Step by Step
Refrigerant Top off, Drop in and Retrofit - Short #140
The Value of Networking for Techs w/ Trevor
How to EFFECTIVELY implement educational growth w/ David Richardson
Comfort Investigation on TV w/ Corbett Lunsford
Commercial HVAC Predictive Control w/ BrainBox AI
3 Phase Energy Savings w/ Falkonair
Internal Apprenticeship w/ Brynn Cooksey
New Educational Options w/ Faraday
HVAC Social Media, AHR & AMRAD Capacitors w/ HVAC_ASH
Net Zero HVAC w/ Bill Spohn, Eric Kaiser and Kaleb Saleeby
Data Logging w/ Collin Olson and Eric Kaiser
Unique K-12 HVAC Incentives, Commercial Regulation Changes and More w/ Mark Tozzi from Carrier
Changing HVAC Regulations w/ Chris Forth of Johnson Controls
Control Over IAQ w/ Kevin Hart from Haven
A FASCINATING New Power Generation / Water Heating Solution w/ Enginuity
Samsung Ductless LIVE From AHR - Short #139
How to ACTUALLY Measure Airflow w/ Steve Rogers and Eric Kaiser
Commercial Rack Refrigeration Component Identification
Universal Boards and Controls w/ Eric K. and Jim F. LIVE from AHR
Malco - New Tools and Education Focus with Rich Benninghoff - Short #138
HFC Phasedown W/ Jason O and Nathan O LIVE from AHR
HVAC Training Past, Present & Future w/ David Holt
Proper System Commissioning w/ Jim Bergmann from AHR Live
3D Load & Energy Calcs w/ Duct Design
A History in HVAC Chemical Chemistry w/ John & Mike Pastorello
Upgrades and Proposals That Lead to Clarity & Profit w/ Michael Housh
Free Tech Support w/ Clifton Beck
Blower Doors Don't Need to Be So Confusing w/ Genry Garcia
Introduction to Psychrometrics w/ Eugene Silberstein
Prepare For Refrigerant Changes w/ Brandon Marshall
The History and Future of Refrigerants w/ Chuck Allgood
Overcoming Conflict at Work w/ Andy Holt
Commercial HVAC Estimating
Furnace Sequence of Operation - Short 137
Starting an Internal Training Program w/ Trevor
Flame "sensing" - Short 136
Grow a Business Through Customer Experience - Throwback Bonus
Refrigeration Defrost Termination & Fail Safe - Short 135
Intro to Project Management - Throwback Bonus
Dealing with Imposter Syndrome - Short 134
Transforming Grocery and Cold Storage with Data
Superheat Talk - Short 133
Liquid Quality vs. Subcooling
Aluminum Repair Tips - Short 132
Specifically About Heat - Short 131
Pressure Measurement Pro Tips w/ Steve Rogers
Copeland Reciprocating CS Compressors w/ Trevor
Adiabatic Cooling - Short 130
Fighting Boredom at Work - Short 129
Review Of Vacuum For Service Revisted
Electric Heat - Short 128
Introducing Refrigeration Mentor w/ Trevor
Effective IAQ Measurement & Control w/ Haven
College vs. Skilled Trades w/ Ryan Gorman
A2L Refrigerant Facts w/ Jason Obrzut
Dealing with Difficult People at Work
The ACCA Manuals w/ Ed Janowiak
Money Conversations for Techs
Sleeve vs. Ball Bearings - Short 127
Horizontal Scroll Compressors w/ Trevor
Buck & Boost Autotransformers - Short 126
An Effective IAQ Process w/ John Ellis
Caring for Technician Mental Health
Troubleshoot the System! w/ Jim Bergmann
How to Measure Total System Airflow w/ Steven
HVAC/R Career Advancement - Short 125
Mini-Split Controls Strategy w/ METUS
Key System Performance Factors - Short 124
Copeland Scroll Compressor Multiples for Air Conditioning w/ Trevor
Margin, COGS, Markup & Profit Confusion - Short 123
Planning and Layout of HVAC Projects
Startup vs commissioning - Short 122
How to Make Mentorship Work w/ Eric Kaiser
Alternatives for College That Parents Should Consider
Triple Evacuation - Short 121
How to Teach the Physics of Everyday Life
Be Careful With Cold Tanks - Short 120
Dehumidification Facts w/ Nikki
TXV Troubleshooting w/ Trevor
Push Pull Recovery - Short 119
Small System Vacuum Tip - Short 118
How to END Callbacks
Compressor Overheating Diagnosis & Prevention
Re-tapping Transformers - Short 117
Indoor Air Quality Map & Compass w/ TZOA
Copeland 2-stage ZPS Scroll Compressors
Screw Compressor Talk w/ Vilter
Condensation Problem Solving - Short 116
ECM Types and Applications
The Right and Wrong Way to HVACR w/ Eric Kaiser
How EC Motors Work
Stacking Liquid vs. Mechanical Subcooling - Short 115
Proper Design For Ductless and Ducted HVAC Systems
Atmospheric Pressure - Short 114
Diagnose and Prevent Compressor Short Cycling
Recovery Tips and Best Practices w/ AC Service Tech
Swaging and Flaring Tips w/ AC Service Tech
Are Contactors Obsolete? (SureSwitch)
Don't Miss The Tech Training Event
Other Uses for Nitrogen - Short 113
Is Ultrasonic Leak Detection Best?
Universal Defrost Controls w/ Jim Fultz
Maybe Don't Buy New Tools - Short 112
How Craig Became "AC Service Tech"
What Skills and Knowledge Should You Start With? - Short 111
Controlling Liquid Refrigerant in A/C
TXV Power Element / Power Head - Short 110
How to Value Engineer Better w/ Alex Meaney
TXV Bulb Placement - Short 109
Dealing with Difficult Customers
Hydrostatic Pressure - Short 108
Introduction to Industrial Refrigeration
Prevent Refrigerant Migration - Short 107
Weird Transformer Talk
Internal vs. Externally Equalized Valves - Short 106
Custom Performance Home w/ Spohn
Service Valve Tips - Short 105
Refrigeration Scroll Compressors
Bert's Top Soft Skills Tips
Gas Furnace Diagnosis & Inspection w/ Jim Bergmann
Pitot vs. Static Pressure Probe - Short 104
Balancing Evaporators in a Circuit Using the TXV
Mass Flow vs. Volume Flow - Short 103
Freezing Evaporator Fun Facts & Frippery
Drain Cleaning - More To It Than We Think
Open v Closed Refrigeration - Short 102
Changing Refrigerant Regulations w/ Bluon
Single Phase v Two Phase Refrigeration - Short 101
Floating Head Strategies
CO2 Architecture
Heat Pumps in Cold Climates
Demand Cooling + Liquid and Vapor Injection
Intro to CO2 w/ Don Gillis
Building Performance QA with Sam Myers
What is Correct Airflow?
Digital Compressor Facts
Small Refrigeration Talk
Single Pole Contactors & Crankcase Heaters
Electronic Expansion Valves
Introduction to CoreSense
How to Get The Most From Online Education
Preventing and Troubleshooting Compressor Issues
Suction Line Temperature - Short #100
Duct Installation Best Practices
Compressor Overheating - Short #99
Troubleshooting & Commissioning Q&A
Advanced Fresh Air w/ CERV2
Combustion Analyzer Facts and Mistakes
Advice on Starting an HVAC/R Career - Short #98
Air Flow Hood Considerations w/ Dwyer
3D Duct Modeling For Residential
How to Effectively Choose and Use Test Instruments
Going Deep on IAQ Sensors and Instruments
VRF and VRV Piping and Installation Overview
Time Management for HVAC Techs
Suction Line Traps - Short #97
Preventing and Overcoming Price Objections - Short #96
Disappearing Latent Capacity - Short #95
Demand Cooling in Low Temp R22 w/ Jeremy Smith
Low Voltage Electrical Basics
Impacts of Compression Changes - Short #94
Superheat and Subcooling Basics
Psychrometric Basics
A Huge Pricing Mistake - Short #93
A Frank UV discussion w/ Ron Saunders from Fresh-Aire UV
Q&A with Richard, Ross, and Evan Trethewey
Blower Doors ACH50 vs. Natural Infiltration
Keeping your Scruples when Selling IAQ - Short #92
Real Indoor Air Quality w/ Nikki from UltraAire
Manometers - Short #91
Is The Future of Air Conditioning Self-Contained Propane Chillers?
Filter + Fan = IAQ Revolution
The Inverter Voltage Problem - Short #90
Testing A/C Vitals w/ Jim Bergmann
Short #89 - Liquid Line Temperature
Viruses, Bacteria, and Fungus #LIVE
Short #88 - Science vs. What Works
New Business Processes #LIVE
A Groundbreaking Motor Technology
Refrigerant Management Strategies w/ Rick Roland
New Refrigerants from Honeywell
EPA Myths and recovery Best Practices #LIVE
News from NATE w/ Gurminder
HVAC Design Mythbusting #LIVE
Mentors and Role Models w/ Andrew Greaves
AHR 2020 Roundup from the Floor
Building Performance Round Table
Live w/ Mike from Refrigeration Technologies
Richard w/ This Old House Shares His Story
Micron Gauges - Products by Pros
Connecting STEM and HVAC w/ Rachel Kaiser
Short #87 - Our Install Reminders
Reversing Valve Diagnosis & Replacement w/ Kaleb
Short #86 - Hoodwinked
Pool Heater Talk #LIVE
R290 Facts and Service w/ True Refrigeration
Short #85 - Low Voltage, Low Voltage
Codes and Failed Inspections #LIVE
FURNACE TALK #LIVE
Mixed Air Temperature w/ David Richardson
Short #84 - Power Passing vs. Consuming
Impactful HVAC/R Instruction
Short #83 - Practical Safety Improvements
Descaling Large Equipment
Short #82 - Brazing Temperature
Heat Pumps, Charging & Defrost #LIVE
IT DOESN'T VOID THE WARRANTY #RANTCAST
Short #81 - Air vs. Nitrogen vs. Oxygen
Inverter Driven Systems & Over-Voltage #LIVE
High Efficiency Gas Furnaces, Common Issues w/ Jim Bergmann
Short #80 - 3 Differences Between Followers and Leaders
Ductless and VRF - Good, Bad & Ugly #LIVE
Floating Head w/ Jamie Kitchen
Short #79 - Circuit Breaker Facts
The Lost Art of Steam - Revisited
What Makes a White Shirt Tech #LIVE
Callback Prevention Principles
Short #78 - 7 Tips for Newbies
Why is a Power Quality Meter Useful? w/ Jim Bergmann
Short #77 - What Causes Capacitors to Fail
Commercial PM Best Practices #LIVE
The Skills Gap and Training #LIVE
Who is Responsible for Proper Sizing?
Short #76 - The Freon Sniffer (A True Story)
How to Use a Combustion Analyzer w/ Jim Bergmann
Short #75 - Stop Duct & Unit Sweating
Stop Designing Ducts Backwards w/ Alex Meaney
Short #74 - So You Wanna Start a Business Eh?
The Dangers of Like-for-Like Tonnage
Gauges, Probes & NIST #LIVE
Short #73 - Ambient CO
Geothermal System Considerations w/ Michael Housh
Short #72 - Vapor Diffusion
Difficult Customers #LIVE
Refrigeraton Case Controllers w/ Sporlan
Short #71 - Brazing, Is Patching OK?
Grocery Refrigeration Talk #LIVE
Manual J Battle with Ed and Nathan
Short #70 - Is Testing Capacitors Under Load Better?
ECM Motors A-Z w/ Eric Kaiser
Refrigerants to Replace R22 #Live
Short #69 - Trap & Vent
Home IAQ w/ Jim Bergmann #Live
How to Charge an AC
Short #68 - Electromagnetism & The Aether
Moisture & Humidity Problems #Live
Non-Condensibles
Short #67 - Defrost Termination and Failsafe
Acid and Contaminants Testing w/ John Pastorello
Short #66 - Water in My Tools!
Special Episode - The SpeedClean Story
Crazy Filter Drier Ideas w/ Eric Mele
Short #65 - Is R22 Becoming Illegal
Study to Test vs. Study to Apply w/ Eric Kaiser
Short #64 - Diagnostic Duct Design
Ceiling Cassettes w/ Eric Mele
Short #63 - I've Been Doing This 30 Years
Make up air W/ Devin Skipper
Short #62 - Impacts of Variable & Staged Compression
Effects of Dewpoint on Coil TD and More MQ Updates w/ Jim B
Short #61 - EPR vs. CDS Valves
Blends and Midpoint w/ Jim Bergmann
Short #60 - How Cold Should it Get Inside?
Suction Pressure in Market Refrigeration
Short #59 - Low Static Can Be Bad
Can a Residential Tech Transition to Market Refrigeration?
Short #58 - A Fair Price
Preventing and Mitigating Legionnaires' disease
Short #57 - Ductless Cleaning Guide
A Peek Behind The Curtain w/ Andrew Greaves
Short #56 - Bypass Factor
Women in HVAC/R
Short #55 - Vacuum Pump Maintenance
Airflow Testing as a Customer Service Tool
Short #54 - Sunk
Residential Air Balancing & Flow Hoods
Short #53 - Brazing Steel
Leak Detection w/ John Pastorello
Short #52 - Enthalpy
Hybrid Boiler Plants w/ Jim Devlin
Short #51 - Separate Gauges
Parking BTUs with Buffer Tanks (Part 2)
Parking BTUs with Buffer Tanks (Part 1)
Short #50 - Oil
Recovery Best Practices w/ NAVAC
Short #49 - VA vs. Watts
System Oversizing & Independent Consulting w/ Genry Garcia
Short #48 - Drains
Can Manufacturers Specs Be a Crutch?
Short #47 - Solar
Work-Life Balance, Real Talk w/ Bert
Short #46 - Surge Protection
Intro to Boilers & Radiators w/ Moe Hirsch
Short #45 - OEM Parts
Special - Soft Skills Top Tips w/ Andy Holt
Controlling Humidity For All Climates
Short #44 - Myth - Time as a Tech Equals Pay
Chiller and Cooling Tower Cleaning w/ Goodway
Short #43 - Is IAQ a Joke?
Propane Refrigerant - A Tech Perspective w/ Chris Stephens
Short #42 - Myth - Flame Rods
Installing Central Air From Scratch w/ Eric M
Short #41 - Context in Education
VRF/VRV Design w/ Jordan Cummings
Short #40 - Specifically Relative
R290 (Propane), What you need to know w/ Embraco
Short #39 - Tricky Amperages
Beacon 2 Refrigeration Talk Through
Short #38 - Low Ambient Cooling
VRF in Real Life w/ John Oaks
Short #37 - The Trade Skills Gap: A Manifesto
Furnace Sequence Of Operation
Short #36 - Stack Effect
The Future of App Based Diagnosis w/ Jim Bergmann
Short #35 - Resolution, Precision & Accuracy
Ventilation w/ John Semmelhack
Gas & Combustion Tools w/ Bill Spohn
Short #34 - Heat Pumps
EPA Regulation Uncertainty w/ Jason Obrzut
Short #33 AMA - Business Tips
AMA#1 - State of the HVAC School Union
Short #32 - "It's Undersized"
Short #31 - U-Factor and R-Value
Friction Rate and Duct Design w/ Dr. Bailes
Critical and Triple Point w/ Rusty Walker
Short #30 - Braze or Solder Anything
Hot Gas Reheat Dehumidification w/ Eric Mele
Short #29 - 3 Quick Tips to Level Up Overnight
Combustion Analysis w/ Jim Bergmann
Short #28 - The Magic Heat Absorber
Do you even CAZ test? w/ Jim Bergmann
Short #27 - Commissioning Mindset
3 Flavors of CO2 w/ Rusty Walker
Short #26 - Temperature Mistakes
Analog & Digital Manifolds w/ James Bowman
Short #25 - A Costly Screwup
Are Refrigerant Additives OK?
Short #24 - Hard vs. Soft Copper
How to Make a Flare That Won't Leak
Chilled Water Air Handlers
Short #23 - Intangible Soft Skills
Refrigeration Temperature Controls w/ Chris Stephens
Short #22 - Mineral & POE Oil
Small Refrigeration Maintenance Procedure
Short 21 - Leak Detectors
Vacuum Pump Basics w/ Kevan Mayer
Short #20 - Tips for Service Valves
Hard Shut Off TXVs
Short 19 - Superheat, Evaporator vs. Compressor
Pulling a Vacuum 2.0 w/ Jim Bergmann
Short 18 - Can You Freeze Water in a Vacuum?
What We Learn From HVAC/R Trade School
Short 17 - MicroChannel
Water Source - The Water Side w/ Eric Mele
Short 16 - Air Velocity is Useful
Intro to Water Source Heat Pumps w/ Eric Mele
Short 15 - Testing Capacitors, A Practical Approach
Seasons of HVAC
Short 14 - The Voltage Drop Tool
Commercial vs. Residential w/ AK HVAC
Short 13 - 3 things the condenser does
Short 12 - The First 4 Rules to Learn
Coil Cleaning with John Pastorello
Danfoss ERC213 Parameters Review
Short #11 - Superheat, The True Meaning
How to Go From Tradesman to Franchise Empire
PCO Air Purification with Jon Bennert
Short #10 - Air Has Weight and Takes up Space
Special EP Inverter Equipment With Ralph Wolf
Basic Refrigerant Circuit Revisited (Part 2)
Basic Refrigerant Circuit Revisited (Part 1)
Making of a TV Show About Home Performance
Sealing Ducts From the Inside w/ Sean Harris
Short #9 - Commercial Maintenance
Air Filters, They are More Complex Than You Knew w/ Lee Andrews
How to Repair Aluminum Leaks
Short #8 - Resistance Up, Amps Down
Universal Digital Refrigeration Controls and the Danfoss ERC 213
Manifolds vs. Probes Battle w/ Adolfo Wurts
HVAC/R Conductor, Breaker, and Fuse Selection
Humidity Talk w/ Johnathan Jones
Short #7 - A Moisture Problem
Prevent Compressor Murder Part 2 w/ Emerson
Short #6 - Energy? Compared to What? EP1
Prevent Compressor Murder Part 1 w/ Emerson
Intro to Manual J & S w/ Jack Rise
Low Voltage Diagnosis Basics w/ Bill Johnson
Introduction to Walk-in Refrigeration
Short #5 - Wire Routing & Connection
Furnace Commissioning Part 2 w/ Jim Bergmann
Short #4 - Blower Taps
Furnace Commissioning Part 1 w/ Jim Bergmann - Input / Rise
Short #3 - Saturation
Measuring Airflow For Techs
Short #2 - Delta T
Beating the Ego, Ignorance, and Insecurity Monster w/ Andrew Greaves
Short #1 - Refrigerant Circuit Basics
Bi-Polar Ionization and IAQ w/ Jon Bennert
Reach-In Refrigeration w/ Eric Mele
Building Performance for HVAC Techs w/ Stephen Rardon and Neil Comparetto
Defrost in Commercial Refrigeration w/ Dick Wirz
Bonus - What you missed at AHR w/ Bill Spohn
Intro to Pneumatic Controls w/ Jim Loring
Floating Suction and Head and Rack Refrigeration w/ Jeremy Smith
Dehumidification Settings and Wiring with the Ecobee thermostat
What it Takes to be an Excellent Residential Service Tech
Special Episode - How to Get a Raise, Promotion or Bonus
Single Phase, 3 Phase, and Split Phase Explained
Desiccant Dehumidification w/ Tom Peterson
Compression Ratio, Heat Pumps and More w/ Carter Stanfield
Using Volts and Ohms in Diagnosis
Variable Speed Motors and Why They Matter w/ Jamie Kitchen
Duct Design Facts w/ Jack Rise
Removing Gas Meters and Heat pumps in Cold Climates w/ Nate Adams
Leak Free Systems w/ Bill Johnson
Furnaces - Introduction and History w/ Jim Bergmann
Electrical Circuits Class
Electrical Basics: How and Why Electrons Move
The Duct We Tend to Forget w/ Joe Medosch
Ductless Maintenance Steps - Part 2
Ductless Maintenance Steps - Part 1
Run Capacitor Facts You May Not Know
Bonus - The Case for Tamper Resistant Caps w/ James Bowman
Economizer Basics w/ Jerry Eavenson
A Steam Heat Primer by Dan Holohan
The Lost Art of Steam Heating w/ Dan Holohan
Bonus - The Spark Ranger
Electronic Expansion Valves (EEV) w/ Jamie Kitchen
(Bonus) HVAC/R Industry State of the Union
Filter Drier Basics w/ Chris Reeves
Nitrogen Pressures do Change with Temperature - the Basic Gas Laws
Bonus - Tips from a VRF Tech w/ Alex Figueroa
Ductless and VRF Diagnosis w/ John Chavez EP2
Matter, Mass, Weight, and Volume
Ductless and VRF Diagnosis w/ John Chavez EP1
Bonus - Tech Communication and "PM Specials" w/ Frank Besednjak
The Basic Refrigeration Circuit, Pressure & Enthalpy w/ Carter Stanfield
Bonus - Leak Sealants and How They Work w/ James Bowman
Commercial Refrigeration for A/C Techs w/ Dick Wirz
Introduction to Ammonia Chillers w/ Camron Conlee
Scales - The Episode You've been Weighting For w/ Adolfo Wurts
Big Announcement - 8/21/17
Looking past the First Thing & Facial (Hair) Profiling w/ Todd Liles
Advanced Evacuation w/ Jim Bergmann
Using ZoomLock Every Day w/ Brent Ridley
How to Perform a Leak Detection on a Low Pressure Chiller w/ Jeff Neiman
Special Episode - The Launch of an HVAC Industry Changing App w/ Jim Bergmann
Condensate Switch Codes and Practices w/ James Bowman
Bonus - Being On Call w/ Les Fork
Measuring Air Flow - Air Density and Direct Air Flow Measurement Part 2 w/ Jim Bergmann
Bonus - Impressions From a Week as a Tech from a College Intern w/ Bill Spohn Jr.
Measuring Air Flow - Static / Capacity & ECM Motors Part 1 w/ Jim Bergmann
Brazing Basics and Tips
Bonus - Blue Collar Life & Experience w/ Ralph Wolf
Drying Stuff vs. Drying Air - Humidification, Dehumidification and Ventilation
Bonus - Restaurant Equipment "Hot Side" w/ Nick Messick
Building Automation Basics for the HVAC Tech w/ Phil Zito
Bonus - HVAC Contractors and Distributors, Keys to a Great Partnership
TXV Operation, Diagnosis and Failure w/ Jamie Kitchen
Check The Charge Without Connecting Gauges - Part 2
Check The Charge Without Connecting Gauges - Part 1
Common Duct Design Mistakes w/ Jack Rise
Why A/C Units Freeze w/ Eric Shidell
Blower Door Testing, Building Performance & More w/ Corbett Lunsford
Introduction to CO2 w/ Andre Patenaude
Bill Spohn is the Man-ometer / 10 Years of TruTech Tools
When Will Techs Be Replaced By Robots? w/ Adolfo Wurts
EPA 608 Changes - What You Need to Know w/ Jeremy Arling
Evacuation 101 w/ Jim Bergmann
Psychrometrics for Fun and Profit w/ Jamie Kitchen
Measuring Voltage Drop w/ Jim Bergmann
Starting Up a New Chiller w/ Jeff Neiman
Hard Start Kits, Types, and Applications w/ James Bowman
Completing the Service Call Process (Part 2) w/ Les Fork
The Residential Service Tech Process w/ Les Fork
Electrical Myths P2 - Grounding & Bonding
Ice Machines and Tech Support w/ Nick Messick
Sometimes a #12 Wire can go on a 40A Breaker
Techs vs. Engineers w/ Bill Spohn from TruTech
Emergency Boiler Repair - Tech Ride along
Ductless Installation P2 - Flaring, Charging and More
Ductless Installation P1 - Application and Drains
Combustion Basics w/ Benoit
HVAC Ridealong - Leak Detection, Repair & New Smart Probes
What Circuit to Break, Makeup Air, Chiller & Boiler Startups and More - HVAC Tech RideAlong
Pumping Away and More w/ Dan Holohan
Why Maintenance Agreements Matter and How to Make Them Work w/ Ruth King
Profitability and Money Leaks in HVAC w/ Ruth King
Should I Start My Own Business? w/ Tersh Blissette
Test Instruments Past, Present & Future w/ Jim Bergmann
Condensing Temperature, Condenser Split and Subcool
Air Flow - Latent, Sensible, WB, DB, RH and Static
New Series Pilot - HVAC Tech Ride Along W/ Justin Skinner
Hard Start Kits, Staybrite #8, Motor Ratings, AHR and Much More
Low Ambient, Condenser Flooding, and Headmaster Valves
Bonus - How Sibling Rivalry Built an Empire
Chiller Talk for the Chillerphobic
Leak Detection Mindset
Recovery, Evacuation, and Dehydration Facts
Building a Great HVAC Business w/ Bob Gee
Combustion Analysis w/ Stephen Rardon
Circuit Board Diagnosis Basics
High-Efficiency Furnace Basics & Maintenance
Cutting Compressors, iManifold, and Thermal Imaging w/ Ulises Palacios
Heat Pumps, Reversing Valves and Defrost
Relays, Sequencers, Transformers and Questionable Metaphors
Some High Voltage Electrical Basics
Gas Furnace Sequence of Operation w/ Justin Skinner
Prepping Non-techs for Winter
Some Refrigeration Thoughts for A/C Techs
Flow Nitrogen Great Again
There is More to Check
Replacing a Compressor from Start to Finish
The 5 Readings Every Tech Must Know Well
Basic Electrical Theory
Diagnosis, Reconfirmation, Parts Changers, and You
The Basic Refrigeration Circuit
Solder Rings, Thermal Imaging and My Grouchy Brother
The Basics of Moving Heat
Why a TXV instead of a TEV?.. or a CSV?