AMERICAN STANDARD WATER HEATERS PV50SLN*

The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.69 for this model. This site combined that UEF with the DOE test's daily hot-water draw for the high draw pattern to reach 245 therms. The registry does not publish that annual figure itself. The source is DOE CCD, retrieved 2026-09-19. Against the 414 gas tank models tested at the same draw pattern, this unit ranks 130th lowest for energy use, in the second-lowest quarter of its class. The gap to the class median of 260 therms is 15 therms. That comparison holds only at the test's draw, not at the draw of any particular home.

The high draw pattern describes a larger household, or one where showers and laundry overlap. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 80 gallons, and the rated volume is 48 gallons. Those two values are what a plumber would check against the household's peak demand. A home whose real hot-water use differs from the test's daily draw will use a different amount of gas than 245 therms. This page has no measured figure for such homes. To compare tanks by fuel, space and size, the water heater selector covers those filters.

The running cost is not written here because it depends on your state's average residential gas price. Multiply the gas use of 245 therms by your own rate, or let the cost calculator do it from your ZIP. The calculation method explains the steps behind the annual cost. The 15 therms difference from the class median of 260 therms is the amount of gas that changes with this model, at the test's draw. The modeled installed-cost range sits in its own block on the page, with its source and date. If you need a unit in the same class, the replacement finder searches by model number.