Air Source Heat Pumps

Install a high-efficiency air source heat pump—and start saving.
air source heat pump
Air source heat pumps can cut your heating and cooling costs by up to 30 percent.

Air source heat pumps extract heat from the air outside and distribute it inside your business. During warmer months, this process is reversed to provide cooling.

There are both ducted and ductless heat pumps, making them suited to buildings with or without existing ductwork.

The Sponsors of Mass Save also offer incentives for qualifying integrated controls, which allow you to control a heat pump and a central heating system from a single device.

Air Source Heat Pumps
Equipment Type Efficiency Requirements Amount ($/Ton)
Air Source Heat Pump Refer to for list of equipment and minimum requirements   $2,500 
  1. Purchase & Install Eligible Equipment
    Have a licensed contractor install eligible equipment.
  2. Submit Rebate Form with Required Documentation
    Apply Online
    Print & Mail Rebate Form
  3. Planning a Project -- Request a Rebate Commitment Letter
    For equipment not yet purchased a Heat Pump Rebate Commitment Letter is available upon request for qualified commercial projects and valid up to one year from the authorization date. Complete the Application Form and submit it via email to: [email protected].

Constructing a new building or completing a major renovation? Read more about our program offerings here.

Can’t find what you’re looking for? The Sponsors of Mass Save offer customized project support to help your business save money and energy, and reduce greenhouse gas emissions. If you have any questions, please contact your Sponsor.

For a full list of eligibility requirements and dates, please reference the rebate form.

  • Equipment displacing natural gas eligible only for commercial or industrial metered customers receiving natural gas service from a Sponsor of Mass Save, including those in municipal electric territories.
  • Equipment displacing oil, propane, or electric resistance eligible only for commercial or industrial metered customers receiving electric service from a Sponsor of Mass Save.
  • Equipment must be listed on the Mass Save Heat Pump Qualified Product List (QPL).
  • Equipment must be used for heating to supplement or replace existing oil, propane, natural gas, or electric-resistance systems.
    • If existing fossil fuel heating equipment will remain in place, customer must either install an integrated control from the Mass Save QPL ( or must certify that an existing building control system is capable of operating both the heat pump and existing heating equipment in parallel, subject to the stated switchover temperature. Documentation of control sequence may be required.
  • Equipment that has already received a rebate from a Sponsor of Mass Save or is being installed in a new construction or major renovation project is not eligible for a rebate.

Contact your Sponsor before installation if:

  • The proposed project is more than 150 tons for Cape Light Compact, Eversource, or National Grid customers; larger systems will be reviewed on a case-by-case basis. For Berkshire Gas, Liberty, or Unitil customers, all projects require preapproval. 
  • The proposed project is for a new building being constructed or a major renovation (visit
  • The proposed project is for a multifamily building, as rebate eligibility depends on the metering of the facility.
  • The heat pumps that are being installed will be using a hydronic or water loop internal to the building (i.e., not a ground loop) as a heat source/sink.
  • You or your contractor has questions about project eligibility.
  • The proposed project is replacing existing heat pump equipment.

Not Sure Where To Start?

If you’re looking for advice on how to save energy, the Sponsors of Mass Save offer energy assessments and guidance to support efficiency projects from start to finish.

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