Ground Source Heat Pumps

1. Purchase & Install Eligible Equipment
   Have a licensed contractor install eligible equipment.
2. Submit Rebate Form with Required Documentation
   Apply Online
   Or
   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 six months from the authorization date. Complete the Application Form and submit it via email to: [email protected].

To learn more about how heat pump technologies work, explore these available training resources.

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.
  • Integrated controls automatically manage when a backup heating system turns on at a pre-set outdoor temperature, either as supplemental heat or the sole heating source.
• If fossil fuel heating equipment will remain in place, customers must either:
• Install an integrated control from the Mass Save QPL (MassSave.com/cihpqpl), or
• Certify that an existing building control system is capable of operating both the heat pump and existing heating equipment in parallel.

Documentation of control sequence may be required.

Customers should work with their contractor to determine the outdoor temperature at which the backup heating system turns on. The program allows your heat pump to continue operating even when the backup system turns on. This helps you maximize heat pump usage for greater energy savings and comfort.

Customers can choose the right temperature setting for their building based on current fuel prices, maximizing heat pump usage, or another strategy that balances utility cost, comfort and efficiency goals.



• 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.
• The proposed project is for a new building being constructed or a major renovation (visit www.MassSave.com/cincmr).
  • Projects looking to pursue an incentive specifically for a heat pump, please visit the Path 3: High Performance Buildings webpage for more information.
• 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.