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Nathan Orr
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Maintenance During Major Repairs
Every contractor is different. I get that. We don't all need to do everything the same way or include the same services with repairs, but there are some “best practices” that can save you a lot of heartache before, during, and after you make a big repair. Catch It During Diagnosis Let's say you find […]
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Does a Motor Draw More or Less at Lower Voltage?
Have you ever noticed that a blower motor rated for 120V draws about twice the amperage of the same horsepower motor rated at 240V? That is because motors are rated in watts or horsepower, and according to Watt's law, Watts = Volts x Amps. To keep the wattage output the same at 120V, it draws […]
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Battery-Integrated HVAC Systems: The Concept of Load Shifting with Built-in Storage
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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Residential vs. Commercial HVAC Sales
 In this candid conversation, Nathan and Bryan dive deep into the often-misunderstood world of sales in the construction and HVAC trades. Nathan, who has transitioned from fieldwork to spending roughly 60% of his time in sales, offers a unique perspective on why sales professionals are necessary despite the skepticism they face from tradespeople. The […]
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Humidity, Airflow, and Refrigeration
 In this episode of the HVAC School podcast, Bryan and Nathan dive deep into the challenges of humidity control in grocery stores and other refrigerated environments. While the conversation takes several entertaining detours (including discussions about morning radio shows, Indian weddings with elephants, and imaginary lava-heated homes), the core content provides valuable insights for […]
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A2L Update With Chemours Live from AHR
 Don Gillis and Dr. Chuck Allgood from Chemours join the show to discuss their new easy as “1,2,3” branding around the A2L refrigerants R454A, R454B, and R454C. They explain that A2Ls are not actually flammable like hydrocarbons; they are just mildly combustible with much lower burning velocity and energy than propane or butane. The […]
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