Carrier, Trane, and Lennox Lock You Into Refrigerant Obsolescence Risk
The top three AC brands—Carrier, Trane, and Lennox—dominate the residential market, but choosing one means committing to its refrigerant type and facing obsolescence risk if that refrigerant phases out. Older systems use R-22, now banned; newer units run R-410A, which faces its own phase-out timeline. Understanding which brands lock you into recharge-cost exposure determines whether your repair bills escalate or remain stable over the system's remaining life. Which major