Ruud PROE40 T2 RH95

The registry does not print the 3,493 kWh figure. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the medium draw pattern. For this model the UEF is 0.93, and the source is the DOE CCD, retrieved 2026-09-19. Among the 426 electric tank models at the medium draw pattern, it ranks 153rd lowest for energy use. That puts it in the second-lowest quarter of its class. The gap to the class median of 3,531 kWh is 38 kWh a year, measured at the test's draw. The figure holds only at that draw. At a different daily draw it would change, and this page does not have data on how much.

The PROE40 T2 RH95 has a rated volume of 36 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 55 gallons. The medium draw pattern represents a typical mid-sized household on a busy morning. So the 3,493 kWh figure describes homes whose use is close to that assumption. A household whose morning peak regularly goes above 55 gallons falls outside the conditions behind this figure. The registry data here does not give this model's energy use for that case. To compare units of other sizes or fuels, use the water heater selector by fuel, space and size. To check another unit in the same class, find a same-class replacement by model number.

This text does not state a running cost, because the cost depends on your own utility's electricity tariff. The page calculates it from your ZIP rather than estimating it. The input is 3,493 kWh a year at the medium draw pattern, combined with your rate. The 38 kWh gap to the class median becomes a cost difference only at your tariff, and that amount is not given in this text. The cost calculator for your own ZIP applies your rate, and how the annual cost is calculated lists each step. The installed-price range on this page appears in its own block, with its own source and date. It is a modeled range, not a quote.