Ruud PROG50-40N RH67 PDV

It holds 47 gallons in the test, 3 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 82 gallons in the test (its first-hour rating). Its tank holds 47 gallons, so reheating adds 35 gallons during the first hour. Among 763 gas storage models, 280 have a higher first-hour rating. Among gas storage models, the median first-hour rating is 78 gallons.

As of Oct 26, 2026, it was not listed as ENERGY STAR certified. In the test, 31% of its energy does not reach the hot water (UEF 0.69). Its test ran at the high level of daily hot water use. Its UEF is lower than that of 151 of the 434 gas storage models with its draw pattern. On its draw pattern, the median gas storage UEF is 0.66. When it reheats water in the test, 81% of the energy it uses ends up in the water.

It is sold as PROG50-40N RU67 PDV and PROG50-40P RU67 PDV. There are 3 more basic models with the same test figures. Those basic models are sold with Friedrich, Rheem, and Richmond as their brand names. You can find the whole group on the page for the Rheem PROG50-40N RH67 PDV.

It may qualify for 2 rebate programs.