Rheem PROE47 S2 RH CG

The registry does not print the 3,531 kWh figure. This site calculated it from the model's UEF, the ratio of hot water delivered to energy used, which is 0.92. The calculation also uses the DOE test's daily hot-water draw for the medium pattern. The UEF comes from the DOE CCD, retrieved 2026-09-19. The result applies only at that test draw. A home that uses more or less hot water than the medium pattern will use a different amount of electricity. The registry data does not show how large that difference would be, so we cannot give it. The steps are set out on the page explaining how this site calculates annual energy and cost.

The medium draw pattern describes a typical mid-sized household 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 54 gallons. Its rated volume is 43 gallons. The 3,531 kWh figure describes a home whose daily hot-water use matches the medium pattern. A home with heavier daily use falls outside the condition behind that figure. The registry data here does not show this model's energy use at a larger draw pattern, so that value is not available. If you need a different size or fuel, you can compare options with the water heater selector by fuel, space and size.

This text does not state a running cost. The cost depends on your own utility's electricity tariff, so the page calculates it from your ZIP code. You can also run the figure in the cost calculator for your own ZIP. This model sits 0 kWh from the class median of 3,531 kWh. At the same electricity rate, its running cost therefore matches that of a median model in its class. Its rank of 213th among 426 models places it at the middle of the class for energy use. The installed price appears in a separate block as a modeled range, not a quote. If you are matching an existing unit, find a same-class replacement by model number.