ECOSENSE RHE50

It holds 46 gallons in the test, 4 gallons less than its 50-gallon sold size. Starting full, it gives 87 gallons of hot water in its first hour of use. Its tank holds 46 gallons, so reheating adds 41 gallons during the first hour. Among 763 gas storage models, 143 have a higher first-hour rating. The median gas storage model gives 78 gallons in its first hour.

On Oct 26, 2026, this heater was not listed as ENERGY STAR certified. In tests, 80% of the energy went to hot water, so its UEF is 0.80. Its test simulated a day of high hot water use (its draw pattern). Of 434 gas storage models with the same draw pattern, 50 have a higher UEF. For its type and draw pattern, the median UEF is 0.66. Of the energy spent to reheat water, 89% goes into it (its recovery efficiency).

It is the basic model for ECORHE50 and ECORHE50P. All of its test figures are shared by 3 other basic models. The Rheem, Richmond, and Ruud brands list one or more of them. For the full group, see the Rheem RHE50 page.

It may qualify for 2 rebate programs.