New Refrigerant 2024 Flammable Liquid. Due to their mildly flammable characteristics, a2l refrigerants will require updates to standards and building. The 2025 refrigerant transition refers to the new regulations requiring the use of more environmentally friendly refrigerants in hvac systems.

Due to their mildly flammable characteristics, a2l refrigerants will require updates to standards and building. The transition to mildly flammable a2l refrigerants (such as 454b and r32) is occurring whether you’re onboard or not.