The Air Conditioning, Heating, and Refrigeration Institute (AHRI) certifies heat pump system efficiency. The AHRI number is a unique ID for heat pump and furnace components that were tested as one system. It is a rating of the efficiency of the complete system. If any component of your heat pump system changes, the system will have a different AHRI reference number.
An AHRI reference number is required when you apply for air source heat pump rebates. The AHRI reference number for your heat pump system must be on the Qualifying Product List. Your contractor must also include the AHRI reference number for your heat pump system, including all components of the system, on your invoice.