This calculator shows the approximate costs of heating water for a typical family. Gallons-per-day, temperature rise, cost-per-unit, and energy factor values are all adjustable.
To use a different fuel costs and/or energy factor, type the new values into the fields and then click “Calculate” below.
- To talk with a professional about upgrading your water heating system, contact an Efficiency Maine Residential Registered Vendor.
- Your fuel prices may differ. Check up-to-date and regional pricing.
- Learn about Efficiency Maine’s heat pump water heater rebates.
This calculator is for comparison purposes only. Actual performance may vary. Default energy prices last updated: 8/31/2023.