Some local codes require that public pools, pools that are in a condominium and apartment or other commercial application be ASME certified.

ASME stands for American Society of Mechanical Engineers. They are a non-profit group which sets many industrial and manufacturing standards. A pool heater that is made to ASME standards will perform to a set of specifications as determined by ASME, specifically in relation to the operating water pressure the appliance can handle.

Each and every ASME heat exchanger that goes into a Raypak heater is certified by a state inspector to make sure it complies with the ASME code for that particular product.