Midea MGWH180IXPP

The annual figure is computed by this site, not by the registry. It starts from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.95 for this model. That value is combined with the DOE test's daily hot-water draw for the high draw pattern. The result is 178 therms of natural gas a year, from DOE CCD data retrieved on 2026-09-19. The class median is 182 therms, so this unit sits 4 therms below it. That puts it in the lowest quarter of its class for energy use, at 45th lowest of 397. The registry does not show what a given household actually uses. The calculation steps are set out in how the annual cost is calculated.

The 178 therms figure belongs to the high draw pattern, which means a larger household, or one where showers and laundry overlap. The registry lists the maximum flow rate in gallons per minute as 5.2 for this model. A household with a smaller daily draw is not covered by this figure. Energy use at other draw patterns is not available on this page. Real use above the test's daily draw is also not reflected in the number. The comparison is limited to the 397 models registered as a gas tankless unit at this draw pattern. For another model in the same class, you can find a same-class replacement by model number.

The running cost is not stated in this text. It depends on your state's average residential gas price, and that price is not part of this model's registry record. The cost is the 178 therms multiplied by your local price. The cost calculator on your own ZIP does that multiplication for you. At the same draw pattern, this unit uses 4 therms less gas a year than the class median of 182 therms. Your gas price decides what that difference is worth. The modeled installed-cost range is shown in its own block with its source and date, and it is not repeated here.