Rheem AM010277T

This site computes the annual figure of 615 kWh; the registry does not publish it. The calculation combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.96 with the DOE test's daily hot-water draw for the very small draw pattern. The figure therefore holds only under that test condition, not for any household's actual use. The unit is compared with the 271 models registered as an electric tankless unit at this draw pattern. It ranks 77th lowest energy use of 271, which places it in the second-lowest quarter of its class. Its difference from the class median of 615 kWh is 0 kWh.

The maximum flow rate in gallons per minute is listed as 1 for this model. Together with the very small draw pattern, that matches the small units the pattern describes: a single bathroom, or a point-of-use heater under a sink. The data does not show how the unit performs with a shower, a full kitchen or several fixtures running at once, so nothing here supports a claim for those uses. Other draw patterns have their own test draws, and the 615 kWh figure does not carry over to them. To look for another unit in the same class, use the replacement finder by model number or the selector by fuel, space and size.

Running cost is not stated here because it depends on your own utility's electricity tariff. Multiply 615 kWh by your rate per kilowatt-hour, or enter your ZIP in the cost calculator for your own ZIP. The page explaining how the annual cost is calculated describes the method. The energy value comes from DOE CCD, retrieved 2026-09-19, and it is a test-based figure, not a measurement of any installation. The installed price appears in its own block on this page as a modeled range, not a quote. This page has no data on actual consumption in a home.