U.S. CRAFTMASTER GCF-50 1**

This site computed the 245 therms figure. The registry does not publish it. The figure 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 0.69, taken from the DOE CCD and retrieved 2026-09-19. The page explains how the annual cost is calculated from that energy figure. The comparison covers the 414 gas tank models registered at the high draw pattern. Among them, this model ranks 130th lowest for energy use. That rank places it in the second-lowest quarter of its class. The figure holds only at the federal test's daily draw. Energy use at any other draw is not available here.

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 84 gallons. Its rated volume is 48 gallons. A household whose busiest hour needs more than 84 gallons falls outside what this rating covers. A household that draws less hot water than the test assumes will use a different amount of gas. That amount is not available on this page. The unit runs on natural gas, so the figures apply only to a home with a gas supply. To compare other fuels or sizes, use the selector by fuel, space and size. To check a like-for-like swap, find a same-class replacement by model number.

This text states no running cost. The cost of 245 therms a year depends on your state's average residential gas price. For that reason the page computes it from your ZIP in the cost calculator on your own ZIP. Both this model and the class median are measured at the same test draw. So the 15 therms gap also converts to money at your rate, and this page does not state that amount. The rate used is a state average, and your own utility bill is not available here. The installed price range appears in its own block, with its source and date. It is a modeled installed-cost range, not a quote.