EEMAX SPEX3277

This site calculated the 622 kWh figure; the registry does not list it. The calculation uses the registry's UEF, the ratio of hot water delivered to energy used. For this unit, that value is 0.95. The calculation also uses the DOE test's daily hot-water draw for the very small draw pattern. The registry values come from the DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. A household that draws more hot water each day will use more than 622 kWh. One that draws less will use less. The page on how the annual cost is calculated sets out each step, including the daily draw the test assumes. This data has no figure for measured use in real homes, so that value is not available here.

The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The registry lists this model's maximum flow rate in gallons per minute as 0.3. The model fits a site whose hot-water demand stays within that flow and that pattern. It does not fit a site that needs more than 0.3 at once. Its rating also says nothing about larger draw patterns. Among the 271 electric tankless units at this pattern, it ranks 152nd lowest in energy use. Its gap of 7 kWh above the 615 kWh median is the only difference from the class that this page states. To check whether another unit at the same pattern uses less, you can find a same-class replacement by model number.

The text on this page does not state a running cost. The cost of 622 kWh a year depends on your own utility's electricity tariff, so the page calculates it from your ZIP. The cost calculator for your own ZIP applies that tariff to the same 622 kWh figure at the very small draw pattern. The installed price range appears in its own block, with its source and date. It is a modeled range of installed costs, not a quote. Neither the running cost nor the installed range changes the 152nd of 271 ranking. That ranking, like the 7 kWh gap from the median, is based on annual energy use alone.