Find AHRI Certified® Commercial Furnaces
Product-Specific Operations Manual
General Operations Manual
This program applies to self-contained gas-fired or oil-fired furnace and furnace/electric air-conditioner combinations, with a rated input of 225,000 Btuh or more, designed to supply heated air through ducts.
The certification program does not include:
Unit heaters; and
The following certification program ratings are verified by test:
Thermal Efficiency, TE, %
The rules and procedures for obtaining and maintaining certification are detailed in the Resources section above. The specific Standard listed above details the technical requirements for rating and publishing your product performance, the AHRI General Operations Manual (OM) details the program operational rules that are generic to all of AHRI’s certification programs and lastly, the Product-specific Operations Manual provides the operational rules that are specific to this program along with the required documents and fees. Please ensure that you are familiar with the latest rules and procedures for this program.