Noritz NRC111OD (GQ-C3257WX US)

This site computed the 186 therms figure; the registry does not publish it. The calculation starts from the registry's UEF, the ratio of hot water delivered to energy used. For this model the UEF is 0.91. It then applies the DOE test's daily hot-water draw for the high pattern. The registry data come from the DOE CCD, retrieved 2026-09-19. Among the 397 models in this class, this unit ranks 213th lowest in energy use. That places it in the second-highest quarter of its class for energy use, above the median noted earlier. The figure holds only at the federal test's daily draw and is not a measurement from any home. The page on how the annual cost is calculated sets out each step.

The high draw pattern stands for a larger household, or one where showers and laundry overlap. The 186 therms figure applies to that usage and to no other pattern. The registry lists a maximum flow rate in gallons per minute of 5.7 for this model. A home whose daily hot-water use differs from the test draw will not match 186 therms. This data gives no figure for other usage levels. A figure for this model at a lower draw pattern is not available here, so this page cannot say how the unit compares for a smaller household. To compare units on other terms, use the water heater selector by fuel, space and size. You can also find a same-class replacement by model number.

This text gives no running cost for the Noritz NRC111OD (GQ-C3257WX US). That cost depends on your state's average residential gas price. The page computes it from your ZIP in the water heater cost calculator for your own ZIP, using 186 therms as the yearly gas use. At whatever rate applies to you, the 4 therms gap to the class median is billed like the rest of the gas use. What that gap costs in money is not stated here. The installed price appears in its own block with its source and date. It is a modeled installed-cost range, not a quote. The 213th rank of 397 refers to energy use only, not to price.