JETGLAS RG2PV50S*N19

This site computes the 235 therms figure; the registry does not publish it. The figure combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the high draw pattern. For this model the UEF is 0.72, taken from DOE CCD data retrieved 2026-09-19. The figure therefore holds only at that test draw. A home that uses more hot water than the test will use more gas, and a home that uses less will use less. Actual household use for this unit is not available in the registry data. The steps behind the number are set out in how the annual energy and cost are calculated.

The high draw pattern stands for a larger household, or one where showers and laundry overlap. Among the 414 gas tank models at that pattern, this one ranks 50th for lowest energy use. That places it in the lowest quarter of its class for energy use. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 78 gallons from a rated volume of 48 gallons. A home whose busiest hour needs more than 78 gallons falls outside what this rating covers. The 235 therms figure also does not describe use at other draw patterns. To compare other units, use the water heater selector by fuel, space and size or find a same-class replacement by model number.

Running cost is not stated in this text because it depends on your state's average residential gas price. The page computes it from your ZIP, applying that price to 235 therms a year at the high draw pattern. The 25 therms gap below the 260 therms class median converts to cost in the same way, so its value also depends on your local rate. Enter your ZIP in the cost calculator for your own ZIP to see the figure for your area. Gas prices that differ from the state average are not available in this data. The installed price range appears in its own block on this page, with its source and date; it is a modeled range, not a quote.