Rheem PROPH80 T2 RH400-30

It holds 72 gallons in the test, 8 gallons less than its 80-gallon sold size. Starting full, it gives 87 gallons of hot water in its first hour of use. Reheating lets it give 15 gallons beyond the 72 gallons in its tank. Among 481 heat pump models, 71 have a higher first-hour rating. Among heat pump models, the median first-hour rating is 72 gallons.

Of its 10 model numbers, 8 are ENERGY STAR certified. For each unit of energy it uses, 4.07 units end up in the hot water (its UEF). Pulling heat from the air lets its UEF pass 1. The daily hot water use in the test, called its draw pattern, was high. Of 237 heat pump models with the same draw pattern, 18 have a higher UEF and 205 a lower one. For its type and draw pattern, the median UEF is 3.88. When it reheats water in the test, the water gains 447% of the energy it uses.

A tag or quote may show any of its 10 model numbers. There are 13 more basic models with the same test figures. Those basic models are sold with Friedrich, Richmond, and Ruud as their brand names. For the full group, see the Rheem PROPH80 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.