STATE UPVA-80Y 1**

This site computes the 628 kWh figure; the registry does not publish it. The calculation starts from the registry's UEF, the ratio of hot water delivered to energy used. It applies that ratio to the DOE test's daily hot-water draw for the very small draw pattern. For the UPVA-80Y 1**, the registry lists a UEF of 0.94. The annual figure therefore holds only at that test draw. It does not describe a household that draws more or less hot water each day. The source is DOE CCD data retrieved on 2026-09-19. The steps behind the energy and cost figures are set out in how the annual cost is calculated.

Ranked by lowest energy use, the UPVA-80Y 1** is 188th of the 271 models registered as an electric tankless unit at the very small draw pattern. That places it in the second-highest quarter of its class for energy use. Its 628 kWh sits 13 kWh above the class median of 615 kWh. The very small pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The registry lists a maximum flow rate in gallons per minute of 0.8 for this model. Hot-water loads larger than the very small pattern fall outside the tested condition, so the 628 kWh figure does not cover them. To compare other models in the same class, use a same-class replacement search by model number.

The running cost is not stated in this text. It depends on your own utility's electricity tariff, so the page computes it from your ZIP code. No assumed rate is used in its place. The input is the same 628 kWh of electricity at the very small draw pattern. A different tariff changes the cost; it does not change that energy figure. The cost of the gap to the class median noted above also depends on your rate. To run the figures on your own tariff, use the cost calculator on your own ZIP. The installed price range appears in its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote.