STATE UPVA-110E 1**

The 635 kWh figure is computed by this site, not published by the registry. It uses the registry's UEF, the ratio of hot water delivered to energy used, which is 0.93 for this model. The second input is the DOE test's daily hot-water draw for the very small draw pattern. Both inputs come from the DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw, and no figure for other daily draws is available here. The class has 271 models registered as an electric tankless unit at the very small draw pattern. This model ranks 218th lowest in energy use among them, which puts it in the highest quarter of its class for energy use. The steps behind this figure are set out in how the annual energy and cost are calculated.

The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The 635 kWh figure applies to that kind of use. The registry lists this model's maximum flow rate in gallons per minute as 1. Data on which fixtures that flow can supply at the same time is not available here. For a home whose daily hot-water use goes beyond that pattern, the test figure does not describe expected consumption. No energy figure for this model at a larger draw pattern is available here. If you are checking whether a unit fits a bigger job, you can compare other units in the selector by fuel, space and size.

This model sits in the highest quarter of its class for energy use, as noted above. If you want lower energy use at the same draw pattern, you can find a same-class replacement by model number and compare the registered figures. Running cost is not stated in this text. It depends on your own utility electricity tariff, so the page computes it from your ZIP. At the test draw, that calculation starts from 635 kWh of electricity a year. The cost calculator for your own ZIP applies your rate to that figure. The installed price range appears in its own block, with its source and date. It is a modeled installed-cost range, not a quote.