STATE GDVNL-40L 1**

The 182 therms figure is computed by this site; the registry does not publish it. It combines two inputs: the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily draw for the medium pattern. This model's UEF is 0.61. The source is the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. The steps are set out in how the annual energy and cost are calculated. The figure applies only at that test draw. A household that draws more hot water each day than the test assumes will use more gas than 182 therms. A household that draws less will use less. The registry does not report energy use at other draw levels, so those figures are not available here.

Among the 288 models registered as a gas tank at the medium draw pattern, this one ranks 73rd lowest in energy use. That places it in the second-lowest quarter of its class. The gap to the class median of 185 therms is 3 therms a year. It sits below the middle of the class but outside its lowest quarter. The medium pattern stands for a typical three- or four-person household. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 64 gallons. The rated volume is 38 gallons. A household whose busy-morning demand fits within 64 gallons matches the conditions behind the 182 therms figure.

The 182 therms figure does not describe a household that draws much more or much less than the medium pattern. A home whose morning demand exceeds the 64-gallon first hour rating falls outside the conditions behind that figure. To compare other fuels or sizes, use the water heater selector by fuel, space and size. The running cost is not stated in this text. It depends on your state's average residential gas price, so the page computes it in the cost calculator for your own ZIP. The installed price range appears in its own block as a modeled range, not a quote. To match this model within its class, see same-class replacement search by model number.