FRIEDRICH PRO+G50-40N RH67 PD

The figure of 245 therms is not a registry entry. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.69 for this model. It also used the DOE test's daily hot-water draw for the high draw pattern. The source registry is DOE CCD, retrieved 2026-09-19. The result applies only to natural gas at that test draw. A real household uses more or less hot water, so its actual therms will differ, and this page holds no measured data for any particular home. The methodology page explains how the calculation works.

Within its class, this unit has the 130th lowest energy use of 414, which places it in the second-lowest quarter. The class median is 260 therms, so the 15 therms difference is the only comparison the rank rests on. Rank by energy use says nothing about purchase price. The high draw pattern describes a larger household, or one where showers and laundry overlap. This model lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 79 gallons, and a rated volume of 48 gallons. A household that uses less hot water than that pattern is not covered by the 245 therms figure, and this page has no value for that case.

The running cost is not written in the text, because it depends on the state average residential gas price where you live. Applying your local gas price to 245 therms gives a yearly cost, and the cost calculator for your own ZIP does that step. This page does not estimate a price. The modeled installed-cost range appears in its own block with its source and date; it is a modeled range, not a quote. To compare against units of the same class, you can find a same-class replacement by model number. To filter by fuel, space and size, use the water heater selector. The figure here is for natural gas only, at the high draw pattern.