Richmond RHE50

The 212 therms figure is computed by this site, not published by the registry. 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 pattern. This model's UEF is 0.8. The figure applies only at that test draw, and use at any other draw is not available here. Among the 414 models registered as a gas tank at the high draw pattern, this one ranks 29th lowest in energy use. That places it in the lowest quarter of its class. The registry data come from the DOE CCD, retrieved 2026-09-19. The steps behind the figure are set out in how this site calculates annual energy and cost.

The high draw pattern stands for a larger household, or one where showers and laundry overlap. This unit has a first hour rating, the gallons of hot water available in the first hour from a full tank, of 87 gallons. Its rated volume is 46 gallons. A home whose peak-hour hot-water demand stays within 87 gallons falls inside what the rating covers. A home whose peak hour needs more than 87 gallons falls outside it. The registry does not state how the unit performs past that point, so that is not available here. The energy figure is for natural gas only; this page gives no figure for another fuel. To compare it with other units of this class, use the same-class replacement search by model number.

The running cost is not written in this text. It depends on the average residential gas price in the reader's state, so the page computes it from the reader's ZIP. That calculation multiplies 212 therms by the state rate, at the high draw pattern. The cost calculator for your own ZIP does this step. Because this model uses 48 therms less gas than the class median, its cost at a given rate is lower than the median model's cost at that same rate. An installed price range is not published for this model. Its ratings lie outside the range the cost database's model was fitted on. The range is not stretched past that point, so the installed price is unknown here.