AMERICAN HESF-50 1**

The figure of 3,531 kWh is not a registry field. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.92 for this model, and from the DOE test's daily hot-water draw for the medium draw pattern. The source is DOE CCD, retrieved 2026-09-19. The figure applies only to that test draw, and a household whose daily hot-water use differs will use a different amount. This page does not estimate that difference. The calculation steps are described in how the annual cost is calculated.

Among the 426 models registered as an electric tank at the medium draw pattern, this model ranks 213th lowest for energy use. The class median is 3,531 kWh, so the difference from the median is 0 kWh. This model uses the same amount as the median model, neither more nor less, and sits in the second-lowest quarter of its class. That suits a reader who needs a like-for-like electric tank at the class's typical energy use. It does not suit a reader who needs the lowest energy use in the class, because other models rank lower than 213th. A same-class comparison by model number is available through find a same-class replacement by model number.

Running cost is not stated in the text, because it depends on your own utility electricity tariff. The cost calculator on your own ZIP applies your rate to the 3,531 kWh figure. The installed price range appears in its own block on this page, with its source and date, and is not repeated here. The registry lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 67 gallons, and a rated volume of 46 gallons. The energy figure does not show whether those values meet a given household's peak demand. For a comparison by fuel, space and size, use the selector by fuel, space and size.