The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) is one of the largest trade associations in the nation, representing more than 300 heating, ventilation, air-conditioning (HVAC), water heating, and commercial refrigeration manufacturers from all parts of the world. Ensuring human comfort, productivity, and safety while practicing environmental stewardship is AHRI’s mission. Through our certification program, standards, advocacy, and other activities, we strive to help save ener…