AMERICAN MHE6-40R-045D 1**

The 3,419 kWh figure was computed by this site, not taken from the registry, and it applies to the medium draw pattern only. It starts from the model's UEF, the ratio of hot water delivered to energy used, which the registry lists as 0.95. The site combined that value with the DOE test's daily hot-water draw, using data from DOE CCD retrieved 2026-09-19. The fuel is electricity. A household that draws more or less hot water than the test will see a different total. The method for the annual cost is documented on its own page.

Among the 426 electric tank models registered at the medium draw pattern, this model is 133rd lowest in energy use. Its 3,419 kWh sits 112 kWh below the class median of 3,531 kWh, which puts it in the second-lowest quarter of its class. The rank compares energy use only; it does not compare hot-water capacity. Capacity is a separate check. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 54 gallons here. The rated volume is 36 gallons. A household that draws more hot water than the test assumes should check those two values against its own use.

The running cost is not stated in this text, because it depends on your own utility electricity tariff. The cost calculator for your own ZIP applies that tariff to the 3,419 kWh yearly figure. The 112 kWh gap to the 3,531 kWh class median is an energy difference. Its effect on cost depends on the same tariff. The 3,419 kWh figure suits a household whose hot-water use matches the medium draw pattern. For any other draw pattern, an annual energy figure is not available on this page. To compare options, use the water heater selector or find a same-class replacement by model number. The modeled installed-cost range is shown in its own block, with its source and date.