Richmond PROPH80 T2 RH375-SO

It holds 72 gallons in the test, 8 gallons less than its 80-gallon sold size. It delivers 87 gallons of hot water in the test's first hour. Its tank holds 72 gallons, so reheating adds 15 gallons during the first hour. Of 481 heat pump models, 71 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 4.07 units of hot water energy per unit it uses (its UEF). It moves heat from the air rather than making it, so its UEF passes 1. In the test, daily hot water use was set to high (its draw pattern). Of 237 heat pump models with the same draw pattern, 18 have a higher UEF. A UEF of 3.88 is the median for its type and draw pattern. While it reheats, the water gains 447% of the energy it uses (its recovery efficiency).

All 4 of its model numbers carry the same certified figures. All of its test figures are shared by 13 other basic models. Those basic models are sold with Friedrich, Rheem, and Ruud as their brand names. For the full group, see the Rheem PROPH80 T2 RH375-SO.

It may qualify for 17 rebate programs. Another 5 programs may accept it if it meets their other terms.