Richmond PROG40-36N RH62 MH DVX

The registry does not list the 185 therms figure. This site calculated it from the model's UEF, the ratio of hot water delivered to energy used. The DOE Compliance Certification Database lists that value as 0.6. The calculation then applied the DOE test's daily hot-water draw for the medium draw pattern, which represents a typical household on a busy morning. The registry data was retrieved on 2026-09-19. So the figure holds only at that test draw. A home that uses more or less hot water each day will burn a different amount of gas. This page has no figure for that case. The class position given above uses the same test basis, so every model in the comparison is measured under the same condition.

For a verifier, the capacity figures show which households match the medium draw pattern test. The tank's rated volume is 38 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 63 gallons. A household whose busiest hour stays within that rating matches the use the test assumes. If a household draws more on its busiest mornings, the annual figure above does not describe its gas use. For that case, the selector by fuel, space and size filters models by capacity. If you are matching an existing unit, the same-class replacement search by model number finds models in the same class.

The running cost is not stated here because it depends on your state's average residential gas price. The page calculates it from your ZIP by applying that price to the 185 therms figure. The cost calculator for your own ZIP shows the result for your address. The page on how the annual cost is calculated explains which inputs it uses. This model's energy use is 0 therms away from its class median. So at any given gas price, its running cost equals that of a median-use model in the class. The installed price range appears in its own block, with its source and date. It is a modeled range, not a quote.