Rheem PRO+G50-38U RH67 PD*

This site computed the 249 therms figure; the registry does not state it. It 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 0.68. Both inputs come from the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. The figure holds only at that test draw. A household that uses more hot water than the test assumes will burn more gas. A household that uses less will burn less. The registry data does not show how large either change would be. The steps behind the figure are set out in how this site calculates annual energy and cost.

The high draw pattern describes 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 class ranking given above counts only models registered as a gas tank at the high draw pattern. At 164th lowest, other registered models in that class record lower energy use than this one. A smaller household that draws less hot water is not described by these figures. For that case, or for another fuel, the water heater selector by fuel, space and size covers other classes. To check this model against others in the same class, use the same-class replacement search by model number.

The text of this page gives no running cost. The cost of 249 therms of natural gas depends on your state's average residential gas price. The page works out that cost from your ZIP in the running-cost calculator for your own ZIP. The 11 therms gap to the class median converts to cost in the same way, at your rate. The installed price range appears in its own block with its source and date. It is a modeled installed-cost range, not a quote. All figures on this page are at model level. The registry data does not show your own unit's gas use under your household's actual hot-water draw.