Ground Source Heat Pumps

Install a high-efficiency heat pump—and get up to $15,000 back.
A heat pump outside a residential home

If you are looking for a convenient way to heat and cool your home, consider a heat pump. Heat pumps can efficiently heat your home in the winter and double as a cooling system in the summer while lowering greenhouse gas emissions.

The Sponsors of Mass Save® are making the purchase and installation of energy-efficient heat pumps affordable for Massachusetts residents.

Ground Source Heat Pumps

Whole-Home Rebates: We offer rebates to customers who install heat pumps as the sole source of heating and cooling. Completion of weatherization recommendations made during a Home Energy Assessment is required for this rebate. To schedule an on-site or virtual assessment, call 1-866-527-SAVE (7283).

Partial-Home Rebates: We offer rebates based on equipment size (tonnage) to customers who install heat pumps in a section of their home.

Ground Source Heat Pump Rebates
Equipment Type RebateType Efficiency Requirements Rebate Amount
Ground Source
Heat Pumps
Whole Home3 Refer to the ENERGY STAR Certified List2 $15,000 per home
Partial-Home $2,000 per ton1, up to $15,000
  1. Tons are calculated based on AHRI cooling capacity divided by 12,000 BTUs. Rebate amount based on tons.  
  2. Ground source heat pumps must be ENERGY STAR certified, qualified, listed with, and certified by AHRI, and meet the program EER and AHRI outdoor unit configuration requirements.  
  3. Heat Pumps installed for whole-home heating and cooling that do not meet the weatherization requirement may be eligible for partial-home rebate amounts.  


Interested in 0% financing?

Apply for a Mass Save HEAT Loan prior to installing your equipment. The Sponsors® of Mass Save are buying down interest rates to make energy efficiency more affordable for Massachusetts residents. With our HEAT Loan, you could qualify for a loan of up to $25,000 toward qualified energy efficient home improvements with terms up to seven years, depending on your Sponsor and the loan provider. Heat pumps must be installed by a contractor participating in the Mass Save Heat Pump Installer Network in order to be eligible for HEAT Loan financing.

If you are interested in installing a heat pump as part of a new construction or major renovation project, please visit Residential New Construction Program and Renovations and Additions Program to learn about how to participate in these programs.



  • Offers valid only for residential customers in Massachusetts where Berkshire Gas, Cape Light Compact, Eversource, Liberty Utilities, National Grid, or Unitil is the Program Sponsor. Customers in municipal electric territories are eligible for heat pump rebates if they are a natural gas heating customer of one of the Sponsors of Mass Save
  • Equipment must be purchased and installed between January 1, 2022, and December 31, 2022
  • Equipment must be installed by a licensed contractor
  • Equipment must be new and installed to either supplement or replace oil, propane, natural gas, or electric baseboard (resistance) as primary heating system –
    • If pursuing whole-home rebates, weatherization recommendations made during a Home Energy Assessment must be complete and a Whole-Home Heat Pump Verification Form must be completed and signed. Heat pumps installed for whole-home heating and cooling that do not meet the weatherization requirement may be eligible for partial-home rebate amounts
  • Equipment installed in individual units in residential 5+ unit complexes, including 1-4 unit buildings that are part of larger complexes, are not eligible for whole-home rebates but may receive the partial-home rebate amounts
  • Rebate form and supporting documentation must be received within 60 days of installation
For more information about program details and the rebates offered on qualified equipment, call 1-800-232-0672 or email [email protected]