FRIEDRICH PRO+G38-40N RH69 PD

This site calculated the 163 therms figure; the registry does not publish it. It combines the model's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the medium pattern. This model's UEF is 0.68, taken from DOE's certification database (CCD), retrieved 2026-09-19. The yearly figure therefore holds only at the federal test's draw. A household that draws a different amount of hot water each day will have a different yearly use. The same 163 therms is also the starting point for the running cost, which is explained in how the annual cost is calculated.

By energy use, this model ranks 5th lowest of the 288 gas tank models registered at the medium draw pattern. That puts it in the lowest quarter of its class. DOE uses the medium pattern to represent a typical household with a busy morning of hot-water use. The model's 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. A household that regularly needs more than 66 gallons in its first hour of use falls outside what this rating covers. The same is true for a home whose daily use matches a different draw pattern, because the class comparison covers only the medium pattern. The selector by fuel, space and size filters models by these ratings.

This text does not state what 163 therms a year costs to run. That cost depends on your state's average residential gas price, so the page calculates it from your ZIP code. The same yearly use costs more where gas is priced higher and less where it is priced lower. To run the figure on your own rate, use the cost calculator for your own ZIP. This page does not publish an installed price range for this model. The model's ratings lie outside the range that the cost database's model was fitted on, and that range is not stretched to cover them. So this page cannot say what installing the FRIEDRICH PRO+G38-40N RH69 PD would cost.