GAMA and I=B=R Certification

Scope: All electric, including heat pump, gas and oil water heaters having energy input ratings and capacities within the parameters outlined below are included in the program. Click on the links to retrieve printable AHRI Directory PDF files.

• Electric storage water heaters with energy input ratings of 12 kilowatts or less at a voltage no greater than 250 volts, and with a storage capacity of not less than 20 gallons nor more than 120 gallons, and electric heat pump water heaters with maximum current ratings of 24 amperes at a voltage no greater than 250 volts, which includes a storage tank with a rated capacity of not less than 20 gallons nor more than 120 gallons, and auxiliary water heating electric heat pumps with maximum current ratings of 24 amperes at a voltage no greater than 250 volts, intended for connection to an existing water heater or storage tank installation.
• Electric instantaneous water heaters with energy input ratings of 12 kilowatts or less with maximum voltage no greater than 250 volts.
• Gas storage water heaters with energy input ratings of 75,000 Btu/h or less and with a storage capacity of not less than 20 gallons nor more than 100 gallons.
• Gas instantaneous water heaters with energy input ratings greater than 50,000 Btu/h but less than 200,000 Btu/h, designed to deliver water at a controlled temperature of less than 180ºF (82.2ºC) and with a storage capacity of less than 2 gallons.
• Oil storage water heaters with energy input ratings of 105,000 Btu/h or less and with a storage capacity of 50 gallons or less.
• Heat pump water heaters with tank
• Heat pump water heaters without tank
• Combination water heater and space heaters

Find Residential Water Heaters in the AHRI Directory.

This program independently verifies:
Efficiency: Energy Factor (EF)
Output: First Hour Rating, gallons (Maximum GPM)