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A Field Guide to Conductors for HVAC Techs
3 Bad Techs Who Don’t Know It
Three Steps to Deliver a Trades Education Talk
HVAC Ghosts of Christmas Past, Present, and Future
Upgrading Time & Temperature Defrost with Demand Defrost for Heat Pumps
Coil Temp Sensors: Thermostats vs. Thermistors
Cabinet Leaks in Air Handlers & Fan Coils
Planning and Installing Condensate Drain Lines
Tandem Compressors and Their Efficiency Benefits
Cold Climate Evacuation Livestream – Pandora’s Box
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
#hvac
Tech Tips:
HVAC work is never just “HVAC” work. One minute you're brazing copper, and the next you're troubleshooting a blown fuse in a disconnect or running a new whip to a condenser. Because our trade is so varied, you never know what you're going to find when you open a service panel or crawl into an […]
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First, let's state the obvious and clear the air a bit. The photo above is SUPER CHEESY! But this story is about three bad techs who don't know it, so a photo of three models clearly posing in clean clothes makes as good a proxy for a bad tech as anything else. First off, I'm not […]
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This article detailing the three steps to deliver a trades education talk was written by David Richardson from NCI. David is an excellent educator with lots of public speaking experience under his belt, and he has shared some great tips to help people share their valuable trade knowledge. If you have any questions for him […]
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There have been many adaptations of A Christmas Carol over the years, but it all started with a novella written by Charles Dickens in the 1840s. It was early in the Victorian Era, fresh off the heels of the Industrial Revolution. The British were reflecting on past Christmas traditions, like caroling, and exploring new ones […]
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Since heat pumps work by extracting heat from the outdoors to bring it inside, the outdoor coil will almost surely freeze up. To mitigate the freezing, heat pumps enter a defrost cycle in which they run in cooling mode to send hot, high-pressure refrigerant back through the outdoor coil and melt the ice. While the […]
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‘Tis heating season once again. It’s getting colder outside, and the heat pumps are starting to frost up outdoors. The defrost cycle helps get rid of the frost, and there are a few different ways we can do that; the methods themselves may differ between systems (time & temperature vs. demand defrost), as may the […]
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When we think of air leakage, a few common scenarios probably come to mind: disconnected ducts at connections, poorly sealed connections, and air leakage around vents are ones we’ve mentioned quite a bit in tech tips and videos over the years. However, there are a few that we haven’t really talked about, particularly for fan […]
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The condensate drain is the source of many a service call in Florida. A lot of the time, the problem is just a clogged drain; bacterial zoogloea (drain snot) loves humidity, and the all-aluminum coils don’t do us any favors. Other times, there are some clear drain design or installation flaws that present hazards to […]
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This tech tip about tandem compressors was inspired by the recent HVAC School podcast episode with the Copeland team. You can listen to that podcast episode HERE. One compressor is great, but how about two in the same circuit? Or three? We see multiple compressors in rack refrigeration circuits, but the concept isn’t as common […]
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Videos:
Podcasts:
In this long-awaited live episode of HVAC School, host Bryan Orr reunites with three industry veterans — Jim Bergmann of measureQuick, Roman Baugh (Kalos), and Andrew Greaves of NAVAC — to tackle one of the most pressing and underaddressed challenges in modern HVAC: performing refrigerant recovery and system evacuation in extreme cold-weather conditions. The […]
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In this episode of the HVAC School Podcast, host Bryan sits down with Johnny, the creator behind the popular social media channel “Let’s Be Techs.” Johnny brings a wealth of hands-on experience to the table, having spent his first 13 years in residential HVAC before transitioning into commercial refrigeration. He shares his unconventional path […]
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Join Joey Henderson LIVE from the 7th Annual HVAC/R Training Symposium in Florida! This essential training breaks down the science of heat transfer into practical field techniques every technician needs. What You'll Learn: Understanding sensible heat (dry bulb) vs latent heat (wet bulb) removal Why airflow matters Heat transfer diagnostics BEFORE pulling out gauges […]
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Recorded live at the 7th Annual HVACR Training Symposium, this episode brings together Roman from HVAC School and building science practitioner Brynn for a deep-dive conversation on one of the most pressing challenges in the HVAC industry: how contractors can use building science principles not just to solve problems, but to communicate value and […]
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Join industry veterans Tim De Stasio, Roman Baugh, Eric Kaiser, and Nathan Orr as they share their most memorable HVAC lessons learned the HARD WAY. This unfiltered conversation from the 7th Annual HVAC/R Training Symposium reveals the real stories behind costly errors, dangerous situations, and valuable HVAC training moments that shaped their careers. What […]
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In this heartfelt and wide-ranging episode, host Bryan reconnects with Jim Bergmann of measureQuick after nearly three years apart. The reunion is anything but ordinary — Jim opens up about a serious battle with non-Hodgkin's B-cell lymphoma that sent him through not one but two rounds of chemotherapy, ultimately requiring a cutting-edge CAR-T cell […]
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Discover what separates elite HVAC technicians from average ones in this eye-opening session from the 7th Annual HVAC/R Training Symposium. Shelby Breger, co-founder of Conduit Tech, and Jim Bergmann, President of measureQuick, reveal what good HVAC techs do differently with data and how they leverage data to transform their diagnostics, commissioning, and service work. […]
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In this episode of the HVAC School Podcast, host Bryan sits down with Jeff Staub, Director of OEM Sales for Danfoss North America, to explore one of the most rapidly evolving frontiers in the HVAC and refrigeration world: thermal management for AI data centers. With nearly 30 years of industry experience spanning technical support, […]
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In this short episode, the HVAC School team members talk with Jim Bergmann (measureQuick) and Renee Tomlinson (ESCO) about the latest and greatest that they brought to their booths at the 7th Annual HVACR Training Symposium. First, JD Kelly spoke with Renee about ESCO Institute's educational offerings. ESCO offers a mix of books and […]
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