EEMAX ECO POU 3.5

This site computes the figure of 622 kWh; the registry does not publish it. The calculation combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the very small draw pattern. The registry lists this unit's UEF as 0.95. Its maximum flow rate in gallons per minute is 0.3. The source is the DOE CCD, retrieved 2026-09-19. The figure holds only for that test draw. Energy use in a home with a different daily hot-water volume is not available in the data, so this page does not estimate it.

The comparison class is the 271 models registered as an electric tankless unit at the very small draw pattern. Their median is 615 kWh, and this model sits 7 kWh above it. Its rank of 152nd lowest places it in the second-highest quarter of the class for energy use. The data given here do not show how far the highest models in the class sit from the median. The draw pattern covers small units, such as a single bathroom or a point-of-use heater under a sink. A load that needs more than 0.3 gallons per minute at one time falls outside what this figure describes. To compare units of the same class, use the same-class replacement search by model number or the selector by fuel, space and size.

Running cost is not stated as an amount here because it depends on your own utility electricity tariff. The energy figure of 622 kWh is the quantity to multiply by your rate per kilowatt-hour. The same rule applies to the gap from the class median: 7 kWh multiplied by your rate is the yearly difference at the test draw. The cost calculator on your own ZIP applies your local tariff to this figure, and the annual cost methodology explains the calculation. The installed-cost range on this page is a modeled range shown in its own block with its source and date. It is not a quote, and its figures are not repeated in this text.