Electric strip-heat cost
Enter the relevant actual strip rating. This does not fill in a typical 10 kW.
Worked example
$1.60
10 kW × USD 0.16/kWh × 1 hour
Illustrative strip-energy cost only. Enter your own figures. This is not a calculated result for your home, and the 10 kW figure is not a suggested rating.
A thermostat’s Aux runtime is not proof that every strip ran at full nameplate power, or that all stages were on. Gas, oil and unknown backup sources are refused. Compressor, blower, fixed fees, taxes and other loads are excluded. Zero hours is arithmetic, not free heat. Displayed cost is rounded to the nearest cent after the full product, with a half cent rounded up.
Sources and last checked: U.S. Department of Energy, Electricity 101. “The amount of electricity a customer uses over time is measured in kilowatt-hours (kWh).” Last checked November 13, 2026. Cost = kW × USD/kWh × hours. The full product is calculated first, then the displayed cost is rounded to the nearest cent, with a half cent rounded up. Electricity 101.