HVAC School - For Techs, By Techs
Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.
Episodes
In this powerful episode of the HVAC School podcast, Bryan sits down with Nate Agentis, third-generation plumber and author of Get Shit Done: How to Build a Strong Team, A Profitable Business, and a Lasting Legacy. Their conversation explores the intersection of personal health, business success, and meaningful leadership...
In this short podcast, Bryan talks about the hidden cost of killing radiant load, especially when it comes to installing radiant barriers in attics.
We sometimes get service calls about ducts sweating when they never used to sweat. If there are no problems with the system (i.e., the refrigerant charge, static pressure, airflow, supply air temperature, and blower speeds ...
This comprehensive episode dives deep into one of the most critical yet misunderstood concepts in HVAC: balance point calculations for heat pump systems. Jim and Bryan break down the complexities of dual fuel systems, explaining why proper sizing and balance point calculations are essential for both comfort and efficiency...
In this short podcast episode, Bryan talks about history and HVAC science: how to dehumidify the air with a waterfall and how cold water became the first air conditioner.
In 1902, Willis Carrier worked for a printing company in Brooklyn, New York. There was a huge humidity problem during the summer: the printing plant got damp, causing paper to swell and ink to smudge. C...
In this comprehensive session, Eric Kaiser walks through the critical importance of establishing proper user requirements before making equipment purchases. Drawing from real-world experiences in the HVAC industry, he demonstrates how poor upfront planning leads to costly mistakes, buyer's remorse, and multiple equipment ...
In this short podcast episode, Bryan explains the science behind a common HVAC simile: static pressure is like blood pressure. He covers the similarities and differences between measuring static pressure during a service call or maintenance and a doctor measuring your blood pressure at a checkup.
Total external static pressure (TESP) should be measured every time you per...
In this comprehensive episode, Bryan Orr sits down with Tim De Stasio to explore the world of comfort consulting and performance contracting in HVAC. Tim, who sold his contracting company to focus on this specialized field, shares his methodical approach to diagnosing home performance issues that go far beyond traditional HVAC troubleshooting. Working primarily in the humid coastal North Car...
In this short podcast episode, Bryan talks about non-bleed TXVs and whether they need hard starts.
A non-bleed (hard shutoff) TXV is a metering device that shuts off during the off cycle; it closes shut when there is no superheat. This strategy prevents refrigerant migration, especially in cases where we have long line sets. Liquid refrigerant stays in the condenser and ...
In this essential episode, Bryan sits down with Jeff and Tom from Copeland to dive deep into the world of scroll compressors and the critical topic of refrigerant compatibility. As the HVAC industry navigates new refrigerant standards and regulations, understanding how compressors are specifically designed and optimized for different refrigerants has never been more important.
In this short podcast episode, Bryan explains how leaky ducts can lead to sweaty, uncomfortable houses.
Moisture issues are common all across humid and "green-grass" climates in the United States. Hot, unconditioned attics and crawl spaces also often have high dew points, which can cause moisture problems in those spaces. Plants also release moisture, so agricultural com...
In this insightful episode of the HVAC School podcast, Bryan Orr sits down with successful small business owner Matt Bruner to discuss how to build and maintain a thriving HVAC business without the typical stress and overwhelming challenges that many entrepreneurs face. Matt, who has been running his own HVAC company for ...
In this business and building-oriented short podcast episode, Bryan discusses the limitations and downsides of intentionality. He also talks about the differences between people who act, think, and work quickly and those who are a bit slower, more detailed, and more methodical; there are upsides and downsides to both.
People often talk about being intentional, but those ...
In this fascinating episode, Bryan welcomes back longtime friend and nuclear industry veteran Bill Nowicki to discuss a recently released document from DHS and NUSTL that provides new recommendations for HVAC operations during nuclear events. Bill brings over 40 years of nuclear experience, starting as a 19-year-old Navy ...
In this short podcast episode about a bigger-picture topic, Bryan talks about making stuff real. He talks about how to make ideas, businesses, podcasts, and other large projects come to life based on his experiences with HVAC School, Kalos, and several other current and past projects.
Understanding yourself and the thing you want to do is the first key to making things ...
In this comprehensive discussion, Bryan sits down with Brad Cooper, an experienced HVAC instructor from Arkansas, and JD Kelly, a trade school graduate, to tackle one of the most pressing questions in the HVAC industry: Is trade school worth it? Rather than offering a simple yes or no answer, the trio dives deep into the ...
In this short podcast episode, Bryan breaks down the differences between split-phase and 3-phase power in HVAC systems. Split-phase is a form of single-phase power, and it's common in residential HVAC. Three-phase power is more common in commercial and industrial applications.
Single-phase power uses only one of the three phases of power produced by the power company. When there is a neutral and two sides of 120V power, that is spl...
In this episode from the 6th Annual HVACR Training Symposium, Brynn Cooksey, a home performance contractor from Michigan and technical training business owner, reveals how indoor air quality (IAQ) testing transformed his contracting business from a commodity service into a profitable specialty. Cooksey shares his proven m...
In this short podcast episode, Bryan covers some basics on bi-metal and magnetic switches.
Bi-metal switches are made of two dissimilar metals that are bonded together and are often integrated into motors. When the temperature changes, the metals bend. In an overload circuit, they're designed to bend and open the circuit in an overheat condition. Mercury thermostats also...
In this educational session, Adam from National Comfort Institute (NCI) delivers a comprehensive deep dive into Fan Law 2 and its practical applications for residential HVAC systems at the 6th Annual HVACR Training Symposium.
Adam begins by establishing the fundamental concepts of...
In this short podcast episode, Bryan drops some knowledge to help with understanding voltage drop, a few different causes of it, and NEC recommendations.
Voltage is electrical potential or "pressure," and voltage drop is the reduction in electrical potential energy. We often think of it happening across conductors (which add resistance), but it also happens across loads ...
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