Big changes are on the horizon for the HVAC industry, and they could impact homeowners—particularly those with systems over 15 years old. Starting January 1, 2025, the EPA will phase out R-410A refrigerant in new air conditioning systems as part of an effort to reduce greenhouse gases and combat climate change. What’s Happening? R-410A refrigerant, the coolant used in most current A/C systems, will no longer be used in new installations after 2024. This change follows the earlier phase-out of R-22