EEMAX SPEX8208T

The registry lists this model with a UEF, the ratio of hot water delivered to energy used, of 0.98. This site computed 603 kWh a year of electricity from that UEF and the DOE test's daily hot-water draw for the very small draw pattern; the registry does not publish an annual figure itself. The source is DOE CCD, retrieved 2026-09-19. The value applies only at the federal test's draw, and this page holds no measurement of use in a real home. The class median is 615 kWh, so this model sits 12 kWh below it, among the 271 models registered as an electric tankless unit at this draw pattern.

The very small draw pattern covers small units - a single bathroom, or a point-of-use heater under a sink. A model at 603 kWh for that draw, ranked 10th lowest of 271, falls in the lowest quarter of its class for energy use, so the figure is relevant to that kind of load. Its maximum flow rate in gallons per minute is 0.7, as listed in the registry. This page gives no annual energy figure for any other draw pattern. Someone whose hot-water demand is larger than a very small draw should not read 603 kWh as their own usage. The water heater selector filters by fuel, space and size, and a same-class replacement can be found by model number.

The running cost is not written here because it depends on your own utility electricity tariff, which this page does not have. The annual figure of 603 kWh is the quantity that is priced at your rate. Enter your ZIP in the cost calculator to see the result, and read how the annual cost is calculated to check the steps. The difference of 12 kWh against the class median of 615 kWh changes the result only by that amount of electricity at your rate. The modeled installed-cost range appears in its own block on this page, with its source and date, and is not a quote.