Chiltrix Inc. DHW80

The figure of 1,499 kWh is electricity per year at the high draw pattern, the standard daily hot-water usage DOE tests against. This site computed it, not the registry. It used the registry's UEF, the ratio of hot water delivered to energy used, of 3.31 and the DOE test's daily hot-water draw for this pattern. The source is DOE CCD, retrieved 2026-09-19. The comparison group is the 194 models registered as an electric tank at the high draw pattern, and their median is 1,306 kWh. This model uses 193 kWh more than that median. It ranks 161st lowest energy use of 194, which puts it in the highest quarter of its class for energy use.

The high draw pattern describes a larger household, or one where showers and laundry overlap. For that use, this unit lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 88 gallons. Its rated volume is 71 gallons. Those two figures describe the hot-water supply the registry lists. They do not show how much energy a particular home uses. A reader who ranks models by annual energy alone will find this one 193 kWh above the class median. The registry data holds no measured use for any actual household, so that is unknown. To compare by fuel, space and size, the water heater selector covers those inputs.

Running cost is not stated in the text, because it depends on your own utility electricity tariff. Multiply 1,499 kWh by your rate per kilowatt-hour to check it, or enter your ZIP in the cost calculator. The methodology page explains how the annual cost is calculated. The figure holds only at the high draw pattern, so a household that draws more or less hot water than the federal test will use a different amount. If you need a unit in the same class as Chiltrix Inc. DHW80, you can find a same-class replacement by model number. The installed price range appears in its own block on this page, with its source and date.