AMERICAN T-H3-DV-N 1**

The figure of 182 therms is calculated by this site, not listed by the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw. This model's UEF is 0.93. The result applies to natural gas only, at the federal test's draw. The source is DOE CCD, retrieved 2026-09-19. The unit ranks 183rd lowest in energy use of 397 models. That places it in the second-lowest quarter of its class. Its use is equal to the class median of 182 therms, so the difference is 0 therms.

The unit's maximum flow rate in gallons per minute is 5.8. The high draw pattern describes a larger household, or one where showers and laundry overlap. The 182 therms figure suits a reader comparing this model with the other models in the same class of 397. It does not describe a smaller household's use, because the figure here belongs to the high pattern only. Energy use at other draw patterns is not available on this page. Whether 5.8 gallons per minute covers several fixtures at once in a given home is not shown in the registry data. To compare units of the same class, try the same-class replacement search by model number.

The running cost is not stated in the text. It depends on the state average residential gas price, and this page does not estimate it. The cost calculator on your own ZIP applies that price to 182 therms. The method behind the annual cost is documented separately. Because this model sits 0 therms from the class median of 182 therms, its cost at one gas rate would match a median model's at that rate. That holds for the same fuel and draw pattern only. The modeled installed-cost range appears in its own block with its source and date. It is not a quote and is not repeated here.