AFUE Calculator

See How Much You Can Save by Upgrading your Furnace or Boiler

Use our free AFUE Savings calculator, below, to calculate how much you could save in fuel costs by upgrading to a higher efficiency furnace or boiler.

1. Select the BTU input, AFUE rating and fuel type of your current heating system (Natural Gas, Propane, Heating Oil or Electric).
2. Choose your new heating system’s fuel type and AFUE rating.
3. See how much you can save!