• AHRI has replaced the "Heating Capacity (H1Full) - Single or High Stage (47F), btuh" field with the "Heating Capacity (47F), btuh (Appendix M1)" field. This data update has resulted in systems that once qualified to no longer qualify. These systems will be eligible for a rebate if installed on or before March 31, 2026, but will no longer be eligible for a rebate beginning April 1, 2026. These systems are marked with a "No - DS" in column B in the spreadsheet (downloaded from the top right-hand corner).
  • The industry is moving away from R410A refrigerants to A2L refrigerants, like R-454B and R-32, to comply with the EPA’s transition rule. Key terms to understand the transition:
    • System: A grouping of HVAC components, otherwise known as split systems (ex: IDUs paired with ODUs).
    • Product: A self-contained unit, otherwise known as a packaged heat pump (ex: evaporator coil, condenser, and compressor all located in one cabinet).
    As of January 1, 2026, the EPA ruling prohibits the installation of new residential and light commercial heat pump Systems with GWPs >700. Systems using R410 refrigerants have been removed from the Heat Pump Qualified Product List. For more information on the A2L transition, view the “Introduction to A2L Refrigerants” course on the Mass Save Heating and Cooling Learning Center. Please note, new residential and light commercial heat pump variable refrigerant flow Systems that are 65,000 BTU/h or greater can be installed prior to January 1, 2027. To clarify this on the Mass Save Heat Pump Qualified Product List (HPQPL), the “Commercial Air Source VRF” tab, column B “Eligible in 2026”, all rows will read “Yes.” Additionally, self-contained heat pump Products with GWPs >700 that are fully assembled and charged at the factory can be installed prior to January 1, 2028.