Ruud RHE50

It holds 46 gallons in the test, 4 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 87 gallons in the test (its first-hour rating). Its tank holds 46 gallons, so reheating adds 41 gallons during the first hour. Of 763 gas storage models, 143 give more hot water in the first hour. Among gas storage models, the median first-hour rating is 78 gallons.

It was not listed as ENERGY STAR certified on Oct 26, 2026. In the test, 20% of its energy does not reach the hot water (UEF 0.80). In the test, daily hot water use was set to high (its draw pattern). Its UEF is lower than that of 50 of the 434 gas storage models with its draw pattern. On its draw pattern, the median gas storage UEF is 0.66. The water took in 89% of the energy used to reheat it (its recovery efficiency).

It is sold as PHE50 and PHE50P. There are 3 more basic models with the same test figures. The ECOSENSE, Rheem, and Richmond brands list one or more of them. For the full group, see the Rheem RHE50.

It may qualify for 2 rebate programs.