Whenever we charge or recover refrigerant, we should absolutely use a charging scale. Not just “when in doubt, weigh it out,” but anytime we use these A2Ls. Whenever you’re dealing with long line sets ...

The shortage of R-454B is already disrupting contractors, particularly those working on new construction or replacing aging ...

In their Q1 2025 earnings reports, Trane, Carrier, and Lennox touched on the current shortage of R-454B, as well as how tariffs could affect the price of HVAC equipment.