Richmond 10E65-HP5U30

It holds 59 gallons in the test, 6 gallons less than its 65-gallon sold size. Starting full, it gives 75 gallons of hot water in its first hour of use. That is 16 gallons more than its tank holds, since it reheats during the hour. In the first hour, 193 of the 481 heat pump models give more hot water. Among heat pump models, the median first-hour rating is 72 gallons.

The single model number sold under it is ENERGY STAR certified. For each unit of energy it uses, 4.05 units end up in the hot water (its UEF). Pulling heat from the air lets its UEF pass 1. Its test ran at the high level of daily hot water use. Among 237 heat pump models on its draw pattern, 32 have a higher UEF. On its draw pattern, the median heat pump UEF is 3.88. When it reheats water in the test, the water gains 457% of the energy it uses.

Its test figures match those of 29 other basic models. The Friedrich, Rheem, and Ruud brands list one or more of them. For the full group, see the Rheem PROPH65 T2 RH375-SO.

In 19 states, 20 rebate programs may accept it. Another 7 rebate programs may accept it if it meets their other terms.