Stiebel Eltron DHC 10-2 Trend

The 615 kWh figure is computed by this site. The registry does not publish it. It 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. For the DHC 10-2 Trend, the rated UEF is 0.96. The registry values come from the DOE CCD, retrieved 2026-09-19. The figure describes use at the test's draw only. A household whose daily hot-water use differs from that draw will not see exactly 615 kWh. Its actual figure is not available here. The steps behind the number are on the page explaining how this site calculates annual energy and running cost.

This unit is compared with the 271 models registered as an electric tankless unit at the very small draw pattern. Within that class, it ranks 77th lowest in energy use. That places it in the second-lowest quarter of its class. The draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The registry lists its maximum flow rate in gallons per minute as 1. The 615 kWh figure applies to that small-unit use. It does not describe a home that draws hot water at several fixtures at the same time. If you are checking a unit for that kind of use, you can compare other types in the water heater selector by fuel, space and size.

This text gives no running cost because the cost depends on your own utility's electricity tariff. The cost block works it out from your ZIP by applying your local rate to the 615 kWh used at the very small draw pattern. To see what the same energy use costs under another tariff, enter a different ZIP in the running-cost calculator for your own ZIP. The installed price range has its own block, with its source and date. It is a modeled installed-cost range, not a quote. If you are checking a unit that is already in place, you can find a same-class replacement by model number among the other 271 models in this class.