MassCEC's Whole-Home Air-Source Heat Pump Pilot is accepting applications through June 25, 2021. This pilot is available to new construction homes and existing homes that are served by natural gas. More information about how to participate in the pilot is below. 

Whole-Home Air-Source Heat Pump Pilot Incentives
Income Category >120% of state median income 80%-120% of state median income <80% of state median income
Base Incentive $2,500 $5,000 $7,500
NEW: Efficiency + Electrification Adder (for Existing Buildings only) Up to $2,500 Up to $2,500 Up to $2,500
Maximum Possible Award $5,000 $7,500 $10,000

Apply here for the Whole-Home Air-Source Heat Pump Pilot!

If you have any questions, please reach out to or call 617-315-9300.  

Whole-Home Air-Source Heat Pump Pilot Eligiblity Requirements

Key pilot program requirements are outlined below. For a full list of requirements see the Pilot Manual

  • The project site must be located in a utility territory that contributes to the Massachusetts Renewable Energy Trust.
  • The project site must be located in a residential facility with one to four units.
  • The air-source heat pump system must be sized to be capable of providing the sole source of heating in the home. Project sites may only include backup or supplemental heat from non-fossil fuel sources.
  • Existing building projects must be located at residences that currently heat with natural gas. 
  • New construction and gut renovation projects cannot have any fossil fuel equipment (including heating, domestic hot water, cooking, and dryer appliances) installed in the residence to be eligible.
  • This pilot is open to air-to-air or air-to-water, split system heat pumps, including variable-refrigerant flow (“VRF”) technologies.
  • MassCEC offers additional incentives for affordable housing developments and households with income below 80% and 120% of the state median income. More information about income verification can be found here.
  • Outdoor units should either be wall-mounted or secured to a pad, risers and/or the surface on which they are set using a factory-approved stand and bolts or adhesive. Risers shall be tall enough to avoid anticipated snow (at least a foot and 18 inches is recommended). Ensure that any ground mounted unit is on soil or a mounting block which is well drained and will not heave with frost. 
  • Existing building projects must submit 36 months of gas usage data (in therms per month). See below for instructions on how to download you gas usage data by service provider. If you do not have Columbia Gas, Eversource, or National Grid as your gas provider, please contact us at

Instructions on how to download your Columbia Gas Usage Data

Instructions on how to download your Eversource Gas Usage Data

Instructions on how to download your National Grid Gas Usage Data

Step 1. Ensure Project Meets Requirements and Primary Installer Meets Eligibility

The System Owner must select one of the participating Primary Installers. The System Owner and Primary Installer should read the program manual prior to submitting an application.

Step 2. Apply for Rebate

The application must be submitted by the Primary Installer through MassCEC’s online application form available at:

View sample applications for an existing building or new construction project.

Step 3. Receive Award Approval

Applications will be evaluated to ensure that the project will meet the eligibility and project requirements. If the application meets all requirements, MassCEC will issue an award letter.

Step 4. Complete Project and Submit Project Completion Documentation

Once the participants have received the award letter, the project may be installed. Projects must be completed within six months of the award date for existing building projects and within twelve months for new construction projects.

Step 5. Receive Rebate

Rebates can be paid to the system owner or primary installer. Rebates will be paid within four weeks following MassCEC’s approval of the submitted project completion documentation.


For more details, please refer to the Pilot Manual.

Why is this pilot only available to existing homes served by natural gas?

  • The pilot is intended to be complementary to other available incentive programs in the Commonwealth, including Mass Save’s heat pump rebates, which offer generous incentives for oil, propanes, and electric resistance customers. As a result, MassCEC has chosen to focus on customers who are served by natural gas for this pilot.

What if my home does not use natural gas?

  • If your home uses a heating fuel other than natural gas, look into the Mass Save rebate programs offered for air-source heat pumps.

Is a gut renovation project eligible for this pilot?

  • Yes, gut renovation projects can be considered new construction projects under this program.

Is a business eligible for this pilot?

  • No, the Whole-Home Pilot is offered to residential projects in one to four unit residential buildings installing air-source heat pump equipment.

What utility territories contribute to the Renewable Energy Trust?


MassCEC has authorized $48 million in funding to support clean heating and cooling programs. As part of this initiative, MassCEC has allocated $500,000 to provides rebates for the installation of whole-home air-source heat pump systems through the Whole-Home Air-Source Heat Pump Pilot. The pilot will accept applications until June 25, 2021 or until all allocated funding has been awarded.

Available Whole-Home Air-Source Heat Pump Pilot Funding

 Total Pilot Budget $500,000
Committed Awards
Applications Under Review
Estimated Remaining Funding

Updated: April 22, 2021

Monthly Updates

For questions please contact us at or call 617-315-9300.