FRIEDRICH PRO+G50-65N RH62 PDV

The registry lists a UEF of 0.65. UEF, the ratio of hot water delivered to energy used, is the efficiency figure behind the energy estimate. The registry does not state annual energy for this model. This site computed 260 therms of natural gas from that UEF and the DOE test's daily hot-water draw for the high draw pattern, using DOE CCD data retrieved 2026-09-19. Among the 414 models registered as a gas tank at this draw pattern, the model ranks 204th lowest in energy use. That places it in the second-lowest quarter of its class, level with the class median of 260 therms. The method behind the annual figure is documented separately.

The high draw pattern describes a larger household, or one where showers and laundry overlap. The 260 therms figure applies only under that condition. This model has a first hour rating, the gallons of hot water available in the first hour from a full tank, of 111 gallons, and a rated volume of 48 gallons. Those are the registry's capacity values. They do not show whether a specific household's peak demand is met, and that is not available here. A household with lighter use falls under a different draw pattern, and this page gives no energy figure for this model at those patterns. To compare by fuel, space and size, use the water heater selector.

Running cost is not written on this page because it depends on the state average residential gas price, which is not part of this model's data. The energy figure of 260 therms is measured in therms, so the cost follows from the gas price per therm where the reader lives. Enter a ZIP in the cost calculator to see the result at the high draw pattern. Because the model sits 0 therms from the class median of 260 therms, its running cost at the same gas price would match a model at that median under the test conditions. A modeled installed-cost range appears in its own block, with source and date, and is not a quote. To look for a same-class model, use the replacement search by model number.