Find Commercial Water Heaters in the AHRI Directory.
CWH DS-1: Data Sheet
CWH-WT1: Application for Witness Testing Form
CWH-WT2: Personnel Experience Questionnaire Form
CWH-WT3: Facility and Equipment Questionnaire Form
Product-Specific Operations Manual
General Operations Manual
All commercial electric, gas, and oil water heaters which have input ratings of 500,000 Btu/h or less and which have energy input ratings and capacity within the parameters outlined below are included in the program.
Electric storage water heaters with energy input ratings greater than 12 kilowatts or with storage capacity greater than 120 gallons
Electric instantaneous water heaters with energy input ratings greater than 12 kilowatts
Gas storage water heaters with energy input ratings greater than 75,000 Btu/h or storage capacities greater than 100 gallons
Gas instantaneous water heaters with energy input of 200,000 Btu/h or greater, or designed to deliver water at a controlled temperature greater than 180ºF (82.2ºC) or with a storage capacity of 2 gallons or more
Oil storage water heaters with energy input greater than 105,000 Btu/h or storage capacities greater than 50 gallons
This program independently verifies:
Thermal Efficiency (ET)
Standby Loss , %/hr or btuh