EEMAX SPEX012240T

The 622 kWh figure comes from this site's calculation, not from the registry. It uses the registry's UEF, the ratio of hot water delivered to energy used. It pairs that with the DOE test's daily hot-water draw for the very small draw pattern. This model's UEF is 0.95. The registry data comes from the DOE certification database (CCD), retrieved 2026-09-19. Against the 271 models registered as an electric tankless unit at the very small draw pattern, this unit ranks 152nd lowest in energy use. That rank places it in the second-highest quarter of its class for energy use. The steps behind the figure are set out in how the annual cost is calculated.

The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. Those are the uses this rating describes. The 622 kWh figure holds only at that pattern's daily test draw. The registry lists this model's maximum flow rate in gallons per minute as 1.1. The figure does not describe a home that draws more hot water each day than the test assumes. Energy use at higher daily draws is not available in the registry data. If the demand you are checking is larger, the selector by fuel, space and size groups models by those criteria. To compare units in the same class as the SPEX012240T, use find a same-class replacement by model number.

This text does not state a running cost for the EEMAX SPEX012240T. The cost depends on your own utility's electricity tariff, so no single figure applies to every reader. The page calculates it from your ZIP by applying your rate to the 622 kWh annual figure. You can run that step yourself with the cost calculator for your own ZIP. The same rate applies to the 7 kWh gap above the class median. So the cost difference from a median unit also depends on your tariff, and it is not stated here. The installed price range has its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote, and it is separate from the running cost.