Richmond PRO+G38-40N RH69 PD

The registry does not list the 163 therms figure. This site calculated it from two DOE inputs. One is the model's UEF, the ratio of hot water delivered to energy used, listed at 0.68. The other is the DOE test's daily hot-water draw for the medium draw pattern. Both come from DOE CCD, retrieved 2026-09-19. The figure therefore holds only at that test draw. A home that uses more or less hot water will burn a different amount of gas, and this page cannot state that amount. The steps behind the number are set out in how the annual cost is calculated. To compare this unit with another, use figures from the same draw pattern, because each pattern rests on a different daily draw.

At the medium draw pattern, this model ranks 5th lowest in energy use of the 288 gas tank models registered at that pattern. That places it in the lowest quarter of its class. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 66 gallons. Its rated volume is 37 gallons. The medium pattern stands for a typical household's use, including a busy morning. A household that needs more than 66 gallons in its busiest hour would draw past this rating. This page has no energy figure for the model at any other draw pattern. If you are matching a unit already in place, you can find a same-class replacement by model number.

The running cost is not written in this text, because it depends on your state's average residential gas price. At 163 therms a year, your cost is that gas use multiplied by your own rate. The cost calculator on your own ZIP does that arithmetic for you. The 22 therms gap to the class median of 185 therms works the same way: its value in money depends on the same local rate. An installed price range is not published for this model. Its ratings lie outside the range the cost database's model was fitted on, and the page does not stretch that range past it. The installed price for this model is therefore not available here.