5 On Your Side has you covered. “The current refrigerant, 410A, has a high global warming potential,” Jenna McClintock, of McClintock Heating & Cooling, said of the reason for the change.

A common refrigerant called R-410A pumps through their innards so they can warm and cool homes and offices and anything else. But that refrigerant is also liquid irony, as it can escape as a ...