Get Tech Tips
Subscribe to free tech tips.
Richwin Johnson Basic Refrigerant Circuit Course June 17, 2021, 8:34 am
Related Tech Tips

This article was inspired by an email we received from a viewer of our HVAC School YouTube channel, Jim Holbrook. Thank you, Jim! Disclaimer: This article is written to help educate you and hopefully save lives. We are NOT an authority on the topic. OSHA, as well as company best practices and risk assessments, should […]
Read more
DISCLAIMER: HVAC School is NOT an official OSHA safety training resource! Although we provide safety tips in good faith, our website is not a substitute for safety training from an authorized OSHA training source. When most people think about respiratory devices, their minds probably jump to soldiers wearing gas masks in warfare, hazardous waste […]
Read more
I remember it like it was yesterday. It was my first day of work as a trainee at my first technician job, just a wet-behind-the-ears kid fresh out of trade school. It was a Monday morning, and the technicians and I were standing in the dusty warehouse surrounded by stacks and stacks of brand new […]
Read more More tech tips