STATE GCRX-55 2**

The 273 therms figure does not appear in the registry itself. This site calculated it from the model's UEF, the ratio of hot water delivered to energy used, which is 0.62 here. The second input is the DOE test's daily hot-water draw for the high draw pattern. The UEF comes from the DOE CCD, retrieved 2026-09-19. The result applies only at that test draw. A household that draws more or less hot water each day will use a different amount, and that amount is not available on this page. The method behind the annual energy and cost figures explains how the site converts the UEF of 0.62 into 273 therms.

The high draw pattern describes a larger household, or one where showers and laundry overlap. For that use, this model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 83 gallons. Its rated volume is 55 gallons. The comparison class holds the 414 models registered as a gas tank at the high draw pattern. At 367th lowest energy use of 414, this model sits in the highest quarter of that class for energy use. That position follows from the 13 therms gap above the class median given at the top of the page. A reader who wants a gas tank at this draw pattern with lower annual energy use can search same-class replacements by model number.

This text gives no running cost, because the cost depends on the reader's own gas rate. Once a ZIP is entered, the page applies the reader's state average residential gas price to the 273 therms figure. The running-cost calculator for your own ZIP shows that result. The cost still assumes the test draw for the high draw pattern. A household that uses less hot water than that pattern is outside what the 273 therms value describes. This page does not have its annual use at a lower draw. The installed-cost range in its own block is a modeled range with its own source and date, and it is not a quote.