FRIEDRICH RTG-95XLN-3

The figure of 206 therms is computed by this site, not published by the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, which is 0.82 for this model, with the DOE test's daily hot-water draw for the high draw pattern. It applies only to that draw and to natural gas. A household that uses more or less hot water than the test draw will use a different amount. The source is DOE CCD, retrieved 2026-09-19. How an annual cost is derived from such a figure is set out in the methodology for water heater costs.

Among the 397 models registered as a gas tankless unit at the high draw pattern, this unit ranks 229th lowest in energy use. That places it in the second-highest quarter of its class for energy use. Its 206 therms is 24 therms above the class median of 182 therms. The maximum flow rate in gallons per minute is 4.8. The data here does not show how the unit performs at other draw patterns. The figure should therefore not be applied to a smaller household, and no value for other patterns is available on this page. A reader who wants lower energy use in the same class can find a same-class replacement by model number and compare figures at the same draw pattern.

The running cost is not stated in this text because it depends on your state's average residential gas price. The cost calculator applies that price, found from your ZIP, to the 206 therms shown for this model. Because the unit sits 24 therms above the class median of 182 therms, the same gas price gives a higher annual cost than the median figure would. A modeled installed-cost range appears in its own block with its source and date. It is not a quote and is not repeated here. If you are still narrowing options by fuel, space and size, the water heater selector covers those.