Richmond PROG50-38N RH60 *

The registry does not print the 264 therms figure. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, and from the DOE test's daily hot-water draw for the high pattern. This model's UEF is 0.64, from DOE CCD data retrieved on 2026-09-19. It is 236th lowest in energy use among the 414 gas tank models at the high draw pattern. That rank puts it in the second-highest quarter of its class for energy use. It uses 4 therms a year more than the class median, measured at the federal test's draw. The figure does not describe a household whose daily draw differs from the test's. The steps are set out in how the annual energy and cost are calculated.

The high draw pattern stands for a larger household, or one where showers and laundry overlap. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 85 gallons. Its rated volume is 48 gallons. When checking a match for that kind of household, compare those two figures with the label on the old unit. For a smaller household, the 264 therms figure does not apply, because it assumes the high pattern's daily draw. This data does not include an energy figure for this model at a lower draw pattern. To find other gas tank models at the same pattern, use the same-class replacement search by model number or the selector by fuel, space and size.

The running cost is not written here, because it depends on your state's average residential gas price. The page works it out from your ZIP instead and applies that rate to 264 therms a year at the high draw pattern. The same goes for the 4 therms gap above the class median: its yearly cost depends on your rate. Both figures assume the federal test's daily draw, not your household's measured use. You can run the figures on your own rate with the cost calculator for your ZIP. The installed price range sits in its own block with its source and date. It is a modeled range, not a quote, and this text does not repeat it.