Richmond XE55T12CS55U0

The 3,531 kWh figure is computed by this site, not taken from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the daily hot-water draw in the DOE test for the medium draw pattern. This model's UEF is 0.92, from the DOE CCD retrieved 2026-09-19. The figure holds only at that test draw. At a larger or smaller daily draw, the annual figure would differ from 3,531 kWh. The registry does not give this model's energy use at other draws, so those values are not available here. The calculation steps are set out in how the annual cost is calculated.

The medium draw pattern stands for a typical household of moderate size on a busy morning. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 74 gallons, from a rated volume of 55 gallons. A home whose peak-hour hot-water use stays within 74 gallons matches the conditions behind the 3,531 kWh figure. A home that regularly needs more than 74 gallons in its busiest hour falls outside those conditions. The registry data here does not show how this unit performs there, so that is unknown. To compare other units by fuel, space and size, use the water heater selector.

Of the 426 electric tank models at the medium draw pattern, the class median is 3,531 kWh. This model's 3,531 kWh differs from that median by 0 kWh, and its rank is 213th lowest energy use of 426. The text does not state a running cost, because that cost depends on the reader's own utility electricity tariff. Multiplying 3,531 kWh by a local rate gives the yearly figure. The cost calculator for your ZIP does that step with your tariff. The installed-cost range in its own block on this page is a modeled range with its source and date, not a quote.