Rheem PROG50-38U RH67 PV*

The 249 therms figure is computed by this site, not taken from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the daily hot-water draw the DOE test sets for the high draw pattern. For this model the UEF is 0.68. The result describes use at that test draw only. A household drawing more or less hot water will use a different amount. Among the 414 gas tank models registered at the high draw pattern, this one ranks 164th lowest for energy use. That places it in the second-lowest quarter of its class. The source is the DOE CCD, retrieved 2026-09-19. The steps are set out in how the annual cost is calculated.

The high draw pattern stands for 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 86 gallons. Its rated volume is 48 gallons. The 249 therms figure applies to a household whose daily hot-water use is close to that test draw. For a smaller household drawing less hot water each day, annual use is not available here. A household whose peak hour needs more than 86 gallons falls outside this model's rating. To compare other models by fuel, space and size, use the water heater selector. To match one in the same class by model number, use the same-class replacement search.

The text of this page does not state a running cost. That cost depends on your state's average residential natural gas price, so the page computes it from your ZIP code. The input is this model's 249 therms a year at the high draw pattern. At that test draw, the model uses 11 therms less gas a year than its class median. What that difference costs depends on your own gas rate, and it is not stated here either. Enter your ZIP in the cost calculator for your own rate to see both figures. The installed-cost range shown in its own block on this page is a modeled range, not a quote.