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How Private Equity Has Been Shaping the Industry (and How to Navigate It)
So You Want to Be a Space HVAC Tech
8 Tips for New Techs (So You Don’t Get Fired)
Top Residential A/C Maintenance Tips
Battery-Integrated HVAC Systems: The Concept of Load Shifting with Built-in Storage
Decoding Windows: Frame Types, Low-E Glass, and How They Affect HVAC
The EPA’s 15-Pound Refrigerant Threshold in 2026
Key Takeaways From the 7th Annual HVACR Training Symposium
How Attic Designs Need to Account for Heat and Moisture
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
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
#hvac
Tech Tips:
My family tries to live as holistically as possible. We make a lot of our own food and stay away from things that are heavily processed and have a lot of additives, preservatives, and common allergens. That means we like to buy snacks from independent brands that are transparent about their recipes, and one of […]
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“It sounds very fancy, but it's really the HVAC of the spacecraft — controlling humidity, temperature and the whole atmosphere onboard.” — Manuel Retana, NASA Project Manager, ECLSS Artemis II | University of Nevada, Reno, April 2026 A NASA engineer who spent five years building the life support system on the Artemis II spacecraft name-dropped […]
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If you are new to the trade, I'd like to welcome you. Like many skilled trades, the HVAC/R trade has many opportunities and can help you make a good living. We need those of you who are young and new to the trade, and we are grateful to have you. But as a word of […]
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A while ago, Bert made a video about his top residential A/C maintenance service tips. He showed some pretty good practices in there, so we’re going to revisit them in this article. Maintenance procedures are vital to any HVAC business, especially those specializing in residential A/C. When we do preventive maintenance, the customers see our […]
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Over the past several years that we’ve been discussing electrification as an industry, we’ve heard concerns about the electrical grid struggling with peak cooling demands. Within the past couple of months, the concept of integrating battery storage directly into HVAC equipment has emerged as a vital solution for load management. This concept turns a typical […]
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Windows might seem like the builder's problem, but they play a big role in what we do every day. Poorly designed windows can spike heat gain in summer or loss in winter, messing with load calculations and forcing HVAC systems to work overtime. That leads to uneven comfort, higher bills, and more service calls. Getting […]
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As of January 1, 2026, refrigerant regulations in the United States have undergone YET ANOTHER big shift. Per Subsection H of the American Innovation and Manufacturing (AIM) Act, which was passed by Congress and signed into law in December 2020, the Environmental Protection Agency (EPA) has officially expanded leak repair and recordkeeping requirements to a […]
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This is a recap of the 7th Annual HVACR Training Symposium session, with a few key themes and takeaways. If you missed the symposium but find some topics of interest in this tech tip, you can still purchase a virtual ticket at hvacrschool.com/symposium. You must be logged in to your account with a ticket to […]
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This tech tip was heavily inspired by one aspect of Rick Sims’s 2021 HVACR Training Symposium session titled “Conductsation.” The entire presentation is worth a watch, but the advice in “Conductsation” and this tech tip are tailored to hot, humid climates. The contents of this tech tip may NOT work for colder climates. Dr. Allison […]
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Videos:
Podcasts:
In this action-packed live stream episode of HVAC School, host Bryan is joined by Eric Kaiser, Ty Branaman, and Roman Baugh for a continuation of a deep-dive conversation on vacuum practices — picking up where a previous episode left off with Andrew Greaves and Jim Bergmann. The team sets out to both reinforce the […]
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This short podcast is from the Bry-X stage of the 7th Annual HVACR Training Symposium: Cheryl Klein's “Surge Protection for HVAC.” Cheryl is with DITEK, a veteran-owned company based in Florida, and has extensive knowledge of whole-home surge protection and HVAC-specific surge protectors. HVAC systems may have their lifespans reduced by power surges (tens […]
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In this special live panel session recorded at the 7th Annual HVAC/R Training Symposium, the three founders of Kalos Services — Bryan Orr, his father Robert (Bob) Orr, and uncle Keith Huntington — sit down together to celebrate the company's 20th anniversary and answer questions from the audience and online attendees. Hosted by Bert, […]
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This short podcast episode is Jeremy Begley's Bry-X session from the 7th Annual HVACR Training Symposium: “Permanent Load Reduction in HVAC – The Hidden Driver of Long-Term Sales.” Some common customer complaints we hear as HVAC contractors include high humidity, high electric bills, noise, and uncomfortable rooms. The typical HVAC solution is to change […]
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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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