STATE GCR-50 2**

The 264 therms figure is computed by this site, not taken from the registry. It combines the unit's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily draw for the high pattern. This model's UEF is 0.64, as listed in the DOE Compliance Certification Database, retrieved 2026-09-19. If a household draws more or less hot water than the test assumes, its actual gas use will differ from 264 therms. Among the 414 gas tank models at the high draw pattern, it ranks 236th lowest in energy use. That places it in the second-highest quarter of its class for energy use.

The high draw pattern describes a larger household, or one where showers and laundry overlap. This unit's first hour rating, the gallons of hot water available in the first hour from a full tank, is 81 gallons. Its rated tank volume is 48 gallons. A plumber checking a sizing match can compare those figures with the peak-hour demand of the home in question. The 264 therms figure applies only at the high pattern's test draw. For a smaller household with lower daily draw, this page has no tested figure, so its annual use is not available. To compare other same-class units, use the same-class replacement search by model number or the water heater selector by fuel, space and size.

Running cost is not stated in this text, because it depends on your state's average residential gas price. The page computes it from your ZIP, applying that price to the 264 therms figure. You can check the result in the cost calculator on your own ZIP and read how the annual cost is calculated. At any single gas rate, the 4 therms gap above the class median adds that many therms' worth to the yearly cost. The installed price range appears in its own block, with its source and date, as a modeled range rather than a quote. Your own utility's tariff may differ from the state average, and the page does not know it.