Federal rules that took effect in 2025 quietly rewired how new home air conditioners and heat pumps are built, yet many homeowners are still being told half-truths or outright myths at the kitchen ...
The refrigerant rules changing around 2025 are often framed as a simple bump in new system prices, but the real story runs through your future repair bills, how long you can keep an older unit alive, ...
LIMITED USE: The 2024 I-Codes limit the amount of A2L refrigerant – such as R-454B -- that can be used for comfort cooling systems. August 22, 2025 As HVACR professionals grapple with the transition ...