Richmond PROPH50 T2 RH400-30

It holds 45 gallons in the test, 5 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 67 gallons in the test (its first-hour rating). Reheating lets it give 22 gallons beyond the 45 gallons in its tank. Of 481 heat pump models, 287 give more hot water in the first hour. The median heat pump model gives 72 gallons in the first hour of the test.

All 4 of its model numbers are ENERGY STAR certified. In the test, it gives 3.88 units of hot water energy per unit it uses (its UEF). A UEF above 1 is possible because it moves heat from the air into the water. Its test ran at the medium level of daily hot water use. Of 226 heat pump models with the same draw pattern, 6 have a higher UEF and 204 a lower one. A UEF of 3.68 is the median for its type and draw pattern. Its recovery efficiency is 430%, because it takes heat from the air as it reheats water.

All 4 of its model numbers carry the same certified figures. There are 13 more basic models with the same test figures. Those basic models are sold with Friedrich, Rheem, and Ruud as their brand names. For the full group, see the Rheem PROPH50 T2 RH375-SO.

It may qualify for 21 rebate programs. It may qualify for 7 more if it meets terms its figures do not show.