Refrigerants
PT charts, refrigerant types, and technical data
4 articles
Calculators
Guides & References
How Much Refrigerant In AC Units By Tonnage
Getting a refrigerant bill from your HVAC technician can feel like a gut punch — especially when you have no idea whether the amount they're charging fo...
Refrigerant Types, Properties, and GWP Chart
We hear this question constantly. With the EPA phasing down high-GWP refrigerants under the AIM Act, homeowners and technicians alike are trying to figu...
Superheat and Subcooling
If you can answer that in your head, you're ahead of most techs on the truck. If you can't, this guide will get you there.