RHEEM/RUUD PROE47 S2 RH95

This site computes the 3,493 kWh figure; the registry does not publish it. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the medium draw pattern. For the PROE47 S2 RH95, the UEF is 0.93. DOE sets the medium pattern for a typical mid-sized household with a busy morning peak. If your household uses more or less hot water than the test assumes, your annual use will differ from 3,493 kWh. The UEF comes from the DOE Compliance Certification Database, retrieved 2026-09-19. The page on how the annual figure is calculated explains each step, including the fixed daily draw.

This unit is compared with the 426 electric tank models registered at the medium draw pattern. It sits 38 kWh below their median of 3,531 kWh and ranks 153rd lowest of 426 for energy use. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 54 gallons. Its rated volume is 43 gallons. These figures apply to a household whose use matches the medium draw pattern. If your household has a heavier morning peak than that pattern, it falls outside the test conditions. In that case, neither 3,493 kWh nor the class rank describes your use. For a different size or fuel, the selector by fuel, space and size filters by those factors.

This text does not state a running cost for the PROE47 S2 RH95. The cost of 3,493 kWh a year depends on your own utility's electricity tariff, and that rate is not in the registry data. The cost calculator for your ZIP applies your local rate to this model's annual figure. The installed price range has its own block on this page, with a source and date. That range is modeled; it is not a quote. If you are matching a replacement, the same-class replacement search by model number lists other electric tank units at the medium draw pattern. That lets you compare each one against the same class median of 3,531 kWh.