A. O. SMITH GPVX-50L 2**

The figure of 232 therms was computed by this site, not by the registry. It uses the registry's UEF, the ratio of hot water delivered to energy used, which is 0.73 for this model. It also uses the DOE test's daily hot-water draw for the high draw pattern. The source is DOE CCD, retrieved 2026-09-19. The result holds only at that test draw. A home that draws more or less hot water will see a different yearly figure. Among the 414 models in its class, this one has the 33rd lowest energy use. That places it in the lowest quarter of the class.

The high draw pattern describes a larger household, or one where showers and laundry overlap. For that use, the first hour rating, the gallons of hot water available in the first hour from a full tank, is 119 gallons. The rated volume is 50 gallons. The rating suits a household whose peak demand in one hour stays within 119 gallons. It does not suit a household whose overlapping use goes beyond that. The registry data do not say how often that happens. A household that draws less than the test will use less than 232 therms, but this page cannot say how much less. The water heater selector compares options by fuel, space and size.

The running cost is not stated in the text. It depends on the state average residential gas price, so it changes with the reader's location. The cost calculator applies your own ZIP to 232 therms. The steps behind that calculation are in how the annual cost is calculated. The gap of 28 therms from the class median of 260 therms is stated in therms only. Its cost depends on the same local price. To compare against another unit in the same class, the replacement search by model number starts from a model like GPVX-50L 2**.