STATE GDVT-50 3**

This site computes the 260 therms figure; the registry does not list it directly. 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 0.65. The source is the DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. A household that uses more hot water will use more gas, and one that uses less will use less. Against the 414 models registered as a gas tank at the high draw pattern, the difference from the median is 0 therms. The page on how the annual energy and cost figures are calculated sets out each step.

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 82 gallons. Its rated volume is 48 gallons. A home whose peak-hour use exceeds 82 gallons would need more hot water than this rating covers. A smaller household will draw less than the test assumes, so its gas use would fall below 260 therms. How far below is not available from the registry. To check other units, the water heater selector by fuel, space and size filters the registry. The tool to find a same-class replacement by model number lists other gas tank models at the high draw pattern.

The running cost is not written in this text. It depends on your state's average residential natural gas price, so the page computes it from your ZIP. That rate applied to 260 therms gives the yearly figure at the high draw pattern; at other usage the result will differ. Because this model sits at its class median of 260 therms, its computed cost at the test draw matches a median model in the class on the same rate. The running cost calculator for your own ZIP shows that result. The installed-cost range on this page is a modeled range, not a quote. Its source and date appear in its own block.