You may not know this, but the HVAC School podcast began before the website. When I started the podcast, I never intended to create a website, but there was more demand for quick tech tips than the podcast could hold. So, we started hvacrschool.com. In the same way, I never set out to create a […]

In these tips and on the podcast, we talk a lot about the importance of deep vacuum, and deep vacuum using proper processes and tools is the best. It's really the ONLY way to ensure that a system is clean, dry, and tight. Just for review, that means: Nitrogen purge, flow and pressurize > Cores […]

I know I'm gonna get some eye-rolling here, but it needs to be said. When we teach electricity to new techs, we use a lot of “water” metaphors. We talk about volts like PSI, amps like flow, and watts like GPM (speaking of GPM in HVAC, check out our article on hydronics HERE). Even the […]