STATE GUR-50 4**

This site computed the 264 therms figure; the registry does not list it. It combines the registry'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. For this model the UEF is 0.64, and the underlying record comes from the DOE CCD, retrieved 2026-09-19. The figure holds only at the federal test's daily draw. A household that draws more or less hot water than the test will use a different amount of gas, and that amount is not available here. The steps behind the conversion are set out in how the annual cost is calculated. If your own record shows a UEF other than 0.64 for GUR-50 4**, the annual figure on this page does not apply to it.

The high draw pattern stands for a larger household, or one where showers and laundry overlap. For that use, the model lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 84 gallons. Its rated volume is 48 gallons. The 236th ranking given above places it in the second-highest quarter of its class for energy use. That class is the 414 models registered as a gas tank at the high draw pattern. A reader who needs a unit from the lowest-use part of this class will not find one here. Same-class alternatives can be checked with a same-class replacement search by model number. The data here does not show how this model performs at other draw patterns.

The running cost is not stated in this text. It depends on your state's average residential gas price, so the page computes it from your ZIP. At your gas price, the 4 therms gap to the class median converts into the yearly cost difference from the median model in this class. Both that gap and the 264 therms total hold only at the federal test's draw. You can apply your own rate with the cost calculator for your own ZIP. The installed price range sits in its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote, and its figures are not repeated here.