STATE GCRH-40 4**

This site calculated the 188 therms figure. It does not come directly from the registry. The calculation starts from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.59 for this model. It then applies the daily hot-water draw that the DOE test sets for the medium draw pattern. The UEF comes from the DOE Compliance Certification Database, retrieved 2026-09-19. The result holds only at the federal test's draw. A household that uses more or less hot water than the test assumes will use a different amount of gas. This page does not give that amount. The steps behind the figure are set out in how the annual energy and cost are calculated.

The medium draw pattern stands for a typical household with a busy morning of hot-water use. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 65 gallons. Its rated volume is 38 gallons. The rating describes a household whose busiest hour stays within 65 gallons. A household that often needs more than that in a single hour is outside what this rating covers. The registry data on this page does not show how the tank performs beyond that point. If you are checking another unit in the same class, you can find a same-class replacement by model number.

Among the 288 models registered as a gas tank at the medium draw pattern, this one ranks 186th lowest in energy use. Its gap from the class median is stated above and is not repeated here. This page does not give the running cost as a single figure. It depends on the average residential natural gas price in the reader's state. The page calculates it from the reader's ZIP. To see what 188 therms a year costs at your own rate, use the running-cost calculator for your ZIP. The installed price range on this page has its own block with a source and a date. It is a modeled range, not a quote.