RELIANCE WATER HEATERS G6-US4040NV 5**

This site calculated the 264 therms figure; the registry does not list it. The calculation uses the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the high draw pattern. For this model the UEF is 0.64. The input data comes from the DOE CCD, retrieved 2026-09-19. The result describes use at that test draw only. A home that uses more or less hot water each day will use a different amount of gas. This page does not have that amount. The steps are explained on the page covering how the annual cost is calculated.

In plain terms, the high draw pattern fits 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 83 gallons. Its rated volume is 38 gallons. Among the 414 models registered as a gas tank at the high draw pattern, it ranks 236th for lowest energy use. That puts it in the quarter of its class just above the median for energy use, at the 4 therms gap already stated. Other units in the same class can be found with the same-class replacement search by model number.

This text does not state the running cost. The cost is the 264 therms figure multiplied by the average residential gas price in the reader's state, so the page calculates it from the reader's ZIP. The cost calculator for your own ZIP does the same calculation for any location. The energy figure belongs to the high draw pattern only. This page has no annual energy figure for a household that uses less hot water than the federal test assumes. For that household, gas use and running cost are not available here. The installed price range is in its own block, with its source and date. It is a modeled range, not a quote.