Ruud MR50245 C

The 3,569 kWh figure is computed by this site; the registry does not publish it. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.91 with the DOE test's daily hot-water draw for the medium pattern. The underlying ratings come from the DOE Compliance Certification Database, retrieved 2026-09-19. The medium pattern represents a typical family household with a busy morning peak. If your household draws more or less hot water than the test assumes, your actual use will differ from 3,569 kWh. The registry gives no energy figure for this model at any other draw pattern. The steps behind the calculation are set out in how the annual cost is calculated.

The class here is the 426 models registered as an electric tank at the medium draw pattern. This unit has a rated volume of 50 gallons and a first hour rating, the gallons of hot water available in the first hour from a full tank, of 57 gallons. Those ratings match the medium pattern it was tested at, so the energy figure applies to a household of that size. Its rank of 425th of 426 places it at the high end of its class for energy use. A reader who wants lower energy use at the same test draw has other models in this class to compare. The selector by fuel, space and size filters the class by those criteria.

Running cost is not stated in this text because it depends on your own utility electricity tariff. The cost calculator on your own ZIP applies your local rate to the 3,569 kWh figure at the medium draw pattern. An installed price range is not available for this model. Its ratings lie outside the range the cost database's model was fitted on, and this site does not extend that model past it. The installed cost of this unit is therefore unknown here. To see how other models compare with the 38 kWh gap to the class median, use find a same-class replacement by model number with MR50245 C.