FRIEDRICH PROPH50 T2 RH375-SO

This site computed the 837 kWh figure; the registry does not list it. The calculation combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the medium draw pattern. For this model the UEF is 3.88, taken from the DOE Compliance Certification Database (CCD) and retrieved 2026-09-19. The yearly figure therefore applies only at the federal test's daily draw. A household drawing more hot water than the test assumes will use more electricity, and one drawing less will use less. The registry does not report how this unit performs at other daily draws, so that figure is not available here. The steps are set out on the page explaining how the annual cost is calculated.

The registry lists a rated volume of 45 gallons for this unit. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 67 gallons. These figures come from the same registry entry as the UEF. They place the model among the 426 electric tanks registered at the medium draw pattern. The comparison therefore fits readers who need a like-for-like figure within this class. A household whose busiest hour needs more than 67 gallons falls outside what this rating covers. The registry gives no figure beyond it. To check other models in the same class, use find a same-class replacement by model number. For a different fuel or space, start from the selector by fuel, space and size.

The running cost is not stated in this text. It depends on your own utility's electricity tariff, which this page does not know in advance. The page applies your rate to the 837 kWh yearly figure at the medium draw pattern once you enter your ZIP in the cost calculator on your own ZIP. The 2,694 kWh gap to the class median converts to a cost difference the same way, at your rate and at the test's daily draw. The installed-cost range appears in its own block, with its source and date. That range is modeled, not a quote, and this text does not restate it. Real-world energy use for this model is not recorded in the registry, so only the test-based figure is available.