FRIEDRICH PROE28 S2 RH93 SB-HO

The figure of 3,456 kWh is not a registry entry. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, of 0.94 and the daily hot-water draw that the DOE test assigns to the medium draw pattern. The fuel is electricity, and the source is DOE CCD, retrieved 2026-09-19. The comparison covers the 426 models registered as an electric tank at the medium draw pattern. This model sits 75 kWh below their median of 3,531 kWh. Its rank of 137th lowest places it in the second-lowest quarter of its class for energy use. The calculation is set out on the methodology page.

The figure applies to the medium draw pattern only, which stands for a typical household on a busy morning. This model has a first hour rating, the gallons of hot water available in the first hour from a full tank, of 53 gallons, and a rated volume of 26 gallons. A household whose busiest hour resembles the test draw is the case that 3,456 kWh describes. A household with heavier or lighter use is not covered, and this page has no energy figure for other draw patterns. The gap of 75 kWh to the class median also holds only for models compared at the medium draw pattern. To compare units by fuel, space and size, the water heater selector covers those inputs.

The running cost is not stated here because it depends on your own utility electricity rate. The page multiplies 3,456 kWh by that rate, and the cost calculator does this from your ZIP. An installed price range is not published for this model. Its ratings, including the rated volume of 26 gallons, lie outside the range the cost database's model was fitted on, and that range is not stretched past its limits. For a unit of the same class as this PROE28 S2 RH93 SB-HO, the replacement lookup by model number lists candidates. Any energy figure it shows for them carries its own draw pattern condition.