STATE GCRX-50 2**

The 277 therms figure is calculated by this site. It is not listed in the registry itself. 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 high draw pattern. This model's registered UEF is 0.61, taken from the DOE CCD on 2026-09-19. By annual energy use, it ranks 400th lowest of 414 gas tank models at the high draw pattern. A household that uses more or less hot water than the test assumes will use a different amount of gas. The registry does not give a figure for any single home, so that figure is not available here. The method behind the annual energy and cost figures explains each step of the calculation.

The high draw pattern describes 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 99 gallons. Its rated volume is 49 gallons. If lower gas use matters most to you, note the gap to the class median given above. Its rank means most models in the same class use less gas a year at the same test draw. To check those models, the same-class replacement search by model number lists units registered as gas tanks at the high draw pattern. The registry does not measure how a unit performs in a real home, so that information is not available.

This page does not state a running cost in the text. The cost of 277 therms of natural gas a year depends on your state's average residential gas price. The page calculates that cost from your ZIP and does not estimate it. The running cost calculator for your own ZIP shows how the result changes from state to state. The cost uses the same test draw as the energy figure, so it has the same condition: the high draw pattern at the federal daily draw. The installed price range appears in its own block, with its own source and date. It is a modeled range, not a quote. None of these figures reflects your own hot-water use, because the registry does not record it.