Friedrich PROH65 T2 FD310UM

It holds 59 gallons in the test, 6 gallons less than its 65-gallon sold size. It delivers 75 gallons of hot water in the test's first hour. Its tank holds 59 gallons, so reheating adds 16 gallons during the first hour. Of 481 heat pump models, 193 give more hot water in the first hour. The median heat pump model gives 72 gallons in its first hour.

The single model number sold under it is ENERGY STAR certified. In the test, it gives 3.50 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, 164 have a higher UEF. On its draw pattern, the median heat pump UEF is 3.88. Its recovery efficiency is 409%, because it takes heat from the air as it reheats water.

All of its test figures are shared by 11 other basic models. Of those, one or more are under the Rheem and Ruud brands. For the full group, see the Rheem PRO H65 T2 RH310BM page.

It may qualify for 20 rebate programs in 19 states. Another 7 rebate programs may accept it if it meets their other terms.