LAARS LCTEH006********

The figure of 622 kWh was computed by this site, not by the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.95 with the DOE test's daily hot-water draw for the very small draw pattern. The source is the DOE CCD, retrieved 2026-09-19. The class median is 615 kWh, so this model sits 7 kWh above it. That puts it 152nd lowest of 271, in the second-highest quarter of its class for energy use. The number is a calculation at the test's draw, not a reading from a home. The steps behind it are set out in how the annual cost is calculated.

The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The 622 kWh figure applies to that pattern only, and the data gives no annual figure for this model at any larger draw pattern. The maximum flow rate in gallons per minute is 0.6, so the figure does not describe a household load that needs more flow than 0.6. The comparison with 615 kWh holds only among the 271 electric tankless models registered at this same draw pattern. To look at other fuels, spaces and sizes, use the selector by fuel, space and size. To list units in the same class as this model, use find a same-class replacement by model number.

The running cost is not stated in this text because it depends on your own electricity tariff, which varies by utility. The same 622 kWh costs a different amount on each tariff, and so does the 7 kWh gap from the class median of 615 kWh. The cost calculator on your own ZIP applies your local rate to the 622 kWh shown here and gives the result for your address. The installed price range appears in its own block on this page, with its source and date, as a modeled range and not a quote. Actual electricity use in a home will differ from 622 kWh if the daily hot-water draw differs from the federal test's.