Ruud PROPH80 T2 RH375-SO

It holds 72 gallons in the test, 8 gallons less than its 80-gallon sold size. Over one hour from a full tank, it gave 87 gallons in the test (its first-hour rating). Reheating lets it give 15 gallons beyond the 72 gallons in its tank. Of 481 heat pump models, 71 give more hot water in the first hour. Among heat pump models, the median first-hour rating is 72 gallons.

Of its 6 model numbers, 4 are ENERGY STAR certified. In the test, it delivered 4.07 units of hot water energy for each unit used (its UEF). Pulling heat from the air lets its UEF pass 1. Its test ran at the high level of daily hot water use. Its UEF is lower than that of 18 of the 237 heat pump models with its draw pattern. On its draw pattern, the median heat pump UEF is 3.88. While it reheats, the water gains 447% of the energy it uses (its recovery efficiency).

All 6 of its model numbers carry the same certified figures. Its test figures match those of 13 other basic models. Those basic models are sold with Friedrich, Rheem, and Richmond as their brand names. You can find the whole group on the page for the Rheem PROPH80 T2 RH375-SO.

It may qualify for 20 rebate programs. It may qualify for 7 more if it meets terms its figures do not show.