Richmond PROG30S-30N RH63

This site calculates the figure of 185 therms a year; the registry does not publish it. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the daily hot-water draw that the DOE test sets for the medium draw pattern. This model's UEF is 0.6. The rating comes from the DOE CCD, retrieved 2026-09-19. The annual figure holds only at the federal test's daily draw. A home that uses more hot water each day will use more gas, and a home that uses less will use less. This page does not have data on how far your own use differs from the test. You can see each step of the calculation on the page explaining how the annual energy and cost figures are calculated.

The medium draw pattern describes a typical household with a busy morning of hot-water use. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 51 gallons. Its rated volume is 29 gallons. The 89th rank given above compares it only with gas tanks at the medium draw pattern. It does not compare it with other fuels or other draw patterns. This rating does not cover a household that needs more than 51 gallons in its peak hour. To compare other fuels or sizes, use the water heater selector by fuel, space and size. To check an alternative in the same class, enter the model number in the same-class replacement finder.

This text does not state the running cost. The cost depends on your state's average residential gas price, so the page calculates it from your ZIP. Enter your ZIP in the running cost calculator for your own ZIP to see the cost of 185 therms a year. This model's energy use equals the class median of 185 therms. At any gas price, its gas cost is therefore the same as that of a model at the class median. The installed price range is not published for this model. Its ratings lie outside the range that the cost database's model was fitted on. The site does not stretch that range beyond its limits, so this page shows no installed price.