2019

This quick tip was written by Daniel Andersen in the HVAC School Group. Daniel was one of my early encouragements to make the podcast, even though he refuses to come on himself. Thanks, Daniel! ERV – What is it?  An energy recovery ventilator allows fresh air from outside to be introduced into the conditioned space […]

Jim is back and gives us a full rundown on recent MeasureQuick updates and what to expect in the future.

EPR and CDS valves are often both considered Evaporator Pressure Regulators but they really function quite differently

Because the name of the website is HVAC School, I get a lot of people who assume we either: A) Have a physical location B) Sell online courses You are probably aware by now that we do neither of those things. We are a free learning resource for anyone looking to improve their professional skills […]

  You've probably heard the famous last words, “Dude, watch this,” before a concussion, burn, shock, broken bones, or some other bodily harm. This phrase has become synonymous with young guys doing something dumb to impress their friends. Technicians have two common phrases that may not lead to bodily harm (although sometimes they might), and […]

Jim talks about dew point, bubble point and midpoint, the purpose of each and why MQ displays midpoint on the gauges

The old “20 degree rule” has come up many times and it's time to put to rest

I got in one of these tiny torches the other day to experiment with brazing aluminum in tight spots, and one of the techs walked in and asked, “What type of torch is that?” I answered, “It's oxy/acetylene.” He picked it up and looked at it a bit, then asked, “Does that get hot enough […]

Nathan Orr is back and we discuss suction pressure in market refrigeration and how rack techs think about it differently than HVAC