New Hvac Refrigerant 2025 Release Date. Beginning january 1, 2025, all new residential air conditioners and heat pumps will be required to use a2l refrigerants. Starting in 2025, a new set of refrigerant regulations will further limit the use of certain types of refrigerants in hvac systems.

As 2025 gets underway, hvac professionals are looking ahead to what the new year and a new presidential administration will bring. Residential and light commercial air conditioners and heat pumps manufactured after jan.