AMERICAN GCRL-40 4**

The annual figure of 191 therms is computed by this site, not the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.58 with the daily hot-water draw the DOE test assigns to the medium draw pattern. The source is DOE CCD, retrieved 2026-09-19. Among the 288 models registered as a gas tank at this draw pattern, this model sits 6 therms above the class median of 185 therms. Its rank, 231st lowest energy use of 288, places it in the highest quarter of its class for energy use. The calculation is described in how the annual cost is calculated.

The energy figure holds only for the medium draw pattern, a typical household on a busy morning, and it says nothing about other usage. For capacity, the registry lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 67 gallons and a rated volume of 38 gallons. Those values describe capacity and do not change the 191 therms figure. A household whose hot-water use differs from the test draw should expect a different annual energy use, and this page has no value for that case. To compare by fuel, space and size, use the water heater selector.

The running cost is not stated here because it depends on the state average residential gas price, which differs by reader. Multiply 191 therms by that price, or enter a ZIP in the cost calculator to have it computed. The same price applies to the 6 therms gap from the class median of 185 therms. A reader who ranks models by energy use alone should note that 231st lowest of 288 means most models in this class use less gas at the same draw pattern. To look for a same-class model by model number, use find a same-class replacement. The modeled installed-cost range appears in its own block on this page and is not repeated here.