EEMAX SPEX3208T

The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.97 for the EEMAX SPEX3208T. The registry does not publish annual energy, so this site computed 609 kWh from that UEF and the DOE test's daily hot-water draw for the very small draw pattern. The source is DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw; actual use at another draw is not covered by it. The class median at this draw pattern is 615 kWh, which puts this model 6 kWh below the median. How the annual cost is calculated is explained on the methodology page.

Among the 271 models registered as an electric tankless unit at the very small draw pattern, this one has the 37th lowest energy use, which places it in the lowest quarter of its class. The median is 615 kWh, and this model is 6 kWh below it. The very small draw pattern covers small units, such as a single bathroom or a point-of-use heater under a sink. The maximum flow rate in gallons per minute is 0.3 for this model. The data on this page covers only that draw pattern, so it does not show how the unit would serve a larger load. For that, the water heater selector by fuel, space and size lets you filter other units.

The running cost is not stated here because it depends on your own utility electricity rate. The energy figure is 609 kWh a year at the very small draw pattern, so your cost is that amount of electricity multiplied by your rate. The cost calculator on your own ZIP does this calculation for you. A modeled installed-cost range is shown in its own block on this page with its source and date. It is a modeled range, not a quote, and it is not repeated here. If you need a same-class unit to compare against SPEX3208T, you can find a replacement by model number.