AMERICAN G9-UT4040NVR 5**

The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.64 for this model. This site computed the 264 therms figure from that UEF and the DOE test's daily hot-water draw for the high draw pattern. The registry does not publish the figure directly. The energy data comes from DOE CCD, retrieved 2026-09-19. Ranked by energy use, the model is 236th lowest of 414. That places it in the quarter of its class just below the highest energy users. Its difference from the class median of 260 therms is 4 therms, and the direction is above the median.

This model is registered at the high draw pattern, which describes a larger household, or one where showers and laundry overlap. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 83 gallons, and its rated volume is 38 gallons. The 264 therms figure applies only at that draw pattern. The registry data used here gives no figure for any other draw. A household whose actual use differs from the federal test's daily draw will see different energy use, and that difference is not available from this data. Models ranked ahead of this one use less energy at the same draw pattern. The water heater selector filters by fuel, space and size.

Running cost is not stated here because it depends on the state average residential gas price, which differs by reader. To apply 264 therms to your own rate, enter your ZIP in the cost calculator. The steps behind the result are described in how the annual cost is calculated. The modeled installed-cost range appears in its own block with its source and date, and it is not a quote. If you need a unit in the same class as the G9-UT4040NVR 5**, you can find a same-class replacement by model number. The class median of 260 therms is the reference for every comparison on this page.