AMERICAN MHE6-40RW-035D-1**

This site calculates the 2,466 kWh figure; the registry does not publish it. The calculation uses the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the low draw pattern. This model's UEF is 0.91. The UEF comes from the DOE CCD, retrieved 2026-09-19. The annual figure holds only at that test draw. A household that uses more hot water each day would use more electricity, and a household that uses less would use less. The registry data does not show how large either change would be, so that figure is not available here. The method behind the annual energy and cost figures sets out each step of the calculation.

The low draw pattern matches the hot-water use of a single person or a couple. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 40 gallons. Its rated volume is 36 gallons. Among the 163 electric tank models registered at the low draw pattern, it ranks 88th lowest in energy use. Its annual use is 27 kWh above the class median. For a household that draws more hot water than the low pattern assumes, the 2,466 kWh figure does not describe its likely use. To look at heaters rated for other conditions, use the water heater selector by fuel, space and size.

This page does not state a running cost, because it depends on your utility's electricity tariff. The cost of running this model scales with your rate per kWh, applied to its 2,466 kWh a year at the low draw pattern. The running cost calculator for your ZIP applies your local tariff to that figure. An installed price range is not published for this model either. Its ratings fall outside the range the cost database's model was fitted on, and this site does not stretch the range past it. To compare it with other electric tank models at the same draw pattern, use the same-class replacement search by model number.