Richmond PROG29-32N RH63 *

It holds 28 gallons in the test, 1 gallon less than its 29-gallon sold size. Starting full, it gives 63 gallons of hot water in its first hour of use. That is 35 gallons more than its tank holds, since it reheats during the hour. Of 763 gas storage models, 655 give more hot water in the first hour. Among gas storage models, the median first-hour rating is 78 gallons.

On Oct 26, 2026, this heater was not listed as ENERGY STAR certified. In tests, 60% of the energy it uses ends up as hot water (UEF 0.60). In the test, daily hot water use was set to medium (its draw pattern). Among 288 gas storage models on its draw pattern, 88 have a higher UEF. On its draw pattern, its UEF is also the median gas storage UEF. The water took in 74% of the energy used to reheat it (its recovery efficiency).

It is the basic model for 6G30-30PF3 and 6G30-32F3 *. All of its test figures are shared by 3 other basic models. Of those, one or more are under the Friedrich, Rheem, and Ruud brands. For the full group, see the Rheem PROG29-32N RH63 * page.