BTUs and Kilowatt Hours

Depending on the utility rates in your area, an electric heat source may be the most cost-effective option to heat your home. With an electric heat source, the key number to keep in mind is that 1 kilowatt-hour (kWh) equals 3,413 BTUs. Since electrical providers charge by the kWh, you can use your BTU load to calculate a rough estimate of your seasonal heating costs. SupplyHouse.com offers electric boilers and water heaters.