Rheem PRO+G38-40N RH69 PD

The figure of 163 therms is computed by this site, not published by the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.68 with the daily hot-water draw that the DOE test assigns to the medium draw pattern. The source is the DOE CCD, retrieved 2026-09-19. The figure therefore describes the test's standard usage for a typical mid-sized household on a busy morning, with natural gas as the fuel. It is not a measurement from any single home. A household that draws more or less hot water than the test assumes will see a different annual figure.

Among the 288 models registered as a gas tank at the medium draw pattern, the class median is 185 therms. This model sits 22 therms below that median and ranks 5th lowest, which places it in the lowest quarter of its class for energy use. The comparison covers energy use at this draw pattern only. It says nothing about purchase price, physical size or other fuels. When verifying a listing, check that the model number and the UEF of 0.68 match the registry entry. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 66. The rated volume is 37 gallons.

The running cost is not written here because it depends on your state's average residential gas price. The cost calculator on your own ZIP applies that price to 163 therms, and how the annual cost is calculated is documented separately. 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 range is not stretched past it. The model suits a household with natural gas service whose hot-water use is close to the medium draw pattern. A household without gas service is outside this comparison, and the selector by fuel, space and size covers those cases.