Heating Comparison Calculator

Compare the annual cost and carbon emissions savings from investing in a new heating and cooling system.

If you’re considering an upgrade to your current heating and cooling equipment, use the Mass Save® Heating Comparison Calculator (HCC) to see how installing a high-efficiency heating system could impact your heating costs—and how much it could reduce your carbon emissions.

Before upgrading your heating system, consider preliminary measures such as sealing and insulating your ductwork and completing weatherization work. Ensuring your home has adequate insulation levels prior to upgrading your heating system can save you up to 20% on your heating and cooling costs and improve the comfort of your home year-round. Click here for more information.


Tons: A ton of wood pellets comes on a pallet or skid and includes 50 x 40lb bags.
Bags: Pellets are normally sold in 40lb bags.
CCF: The most common unit of measurement applied to natural gas usage. This measurement represents a unit of volume equal to 100 cubic feet.
Cords: A cord is defined as 128 cubic feet of wood. This measures approximately 4’ high x 8' long x 4' deep.
Gallons: A measurement for fuel oil. kWh: A kilowatt hour (kWh) is a measure of how much energy you're using per hour. Usage can be located on your bill from your electric provider.

Legal Disclaimer

  • The tool is designed to give users an initial estimate of the potential cost savings and greenhouse gas emission savings of installing a heating and cooling system. Actual savings will be determined by the design of the specific system, features of the specific home, residents' energy use, and other variables.
  • Cost savings assumptions produced by this tool are highly sensitive to assumed energy price inputs. This model assumes an average electricity rate of $0.31/kWh, and current fuel price for non-electric commodities as reported by the U.S. Energy Information Administration (EIA). Particularly during periods of high price volatility, actual costs and savings could vary significantly based upon a number of factors, including actual energy prices.
  • We do not guarantee that the savings projected by the tool will be achieved by a specific heating and cooling installation.
  • Users should not rely on this tool alone when making purchase decisions.

This calculator is designed to be informational and educational only, and when used alone, does not constitute technical advice. We strongly recommend that you seek the advice of a professional before making any type of purchase decision. This model is provided as an initial estimation of potential cost and greenhouse gas emissions savings. The results presented by this calculator are hypothetical and may not reflect the actual savings and costs your of your own specific situation, which may vary due to a variety of inputs such as building square footage and configuration, current heat load and system size, current heating system, location, climate zone, and incentives. The RCS Network and its members and affiliates are not responsible for the consequences of any decisions or actions taken in reliance upon or because of the information provided by these tools.