Mass Save Heat Pump rebate

Complete guide to understanding Mass Save® heat pump rebates

If you live in Massachusetts, there are financial incentives to help you heat and cool your home more efficiently with air source heat pumps. Mass Save® Sponsors help Massachusetts residents save money through energy efficiency and have rebates to help you save money on installing heat pumps. Check out this complete guide to learn all about the air source heat pump rebates available, how to claim your heat pump rebates, and common questions about how the Mass Save rebate program works.

Key takeaways

  • Massachusetts homeowners can get a $10,000 rebate to install air source heat pumps in their home through Mass Save (or $16,000 if they meet certain income eligibility requirements). 
  • The exact amount you qualify for depends on the system you’re installing and whether it’s for your entire home or just a portion of it.
  • You’ll want to work with a participating heat pump contractor in order to streamline the process from comparing installers to the installation itself to claiming your rebate.
  • If you have questions about Mass Save rebates you can call 1-800-232-SAVE (0672) or email
  • Check out the EnergySage Marketplace to receive quotes from local installers and save money by pairing your air source heat pumps with solar!

What’s included in this guide?

What heat pump rebates are available in Massachusetts?

Mass Save is a collaborative of several Massachusetts electric and natural gas utilities and energy efficiency service providers. They offer two main types of air source heat pump rebates available through Mass Save:

Whole-home rebate

The Mass Save whole-home rebate of $10,000 is available if you make weatherization updates and install air source heat pumps to heat and cool your entire home. However, there are some specifics to know going this route – for example, you won’t be able to have a backup power source.

Partial-home rebate

Even if you’re not replacing your entire HVAC system with air source heat pumps, or just using them to heat and cool part of your home, the Mass Save partial-home or supplemental rebate is still an option to get money back. This partial-home rebate is based on the amount of energy usage you’re covering with a heat pump, so basically the capacity or size of your air source heat pumps. This is done via a per-ton measurement. Tons are calculated based on the Air Conditioning, Heating, and Refrigeration Institute (AHRI) cooling capacity divided by 12,000 British Thermal Units (BTUs). 

Enhanced heating and cooling rebates based on income eligibility

In August 2022, the Sponsors of Mass Save launched Enhanced Heating & Cooling Equipment Rebates, increasing the rebate available to $16,000 if you live in a one to four unit home, your household income meets certain eligibility requirements, and you’re replacing an existing oil, propane, or electric resistance system with heat pumps. We outline the details below as well.

Summary of Mass Save rebates

Mass Save Rebate typeRebate amount available
Whole-home $10,000 per home
Partial-home/ supplemental$1,250 per ton, up to $10,000
Whole-home (income-based: Enhanced Heating & Cooling Equipment Rebates)$16,000 per home

When are integrated controls required?

If your home will continue to use an oil, propane, or natural gas backup, you’ll need to also install integrated controls in order to qualify for the partial-home heat pumps rebate. Integrated controls like certain smart thermostats allow you to automatically switch between using an air source heat pump and a fossil fuel-powered heating system at a pre-determined outdoor temperature. 

This helps you minimize the use of a furnace or boiler while maximizing the use of a heat pump to provide increased savings and comfort. Pro tip: There is also a Mass Save rebate for adding integrated controls to your home which you can use to save money as well.

Are you eligible for the Mass Save heat pump rebate?

The specific eligibility requirements called out on the Mass Save website include:

  • Location: You must be a residential customer in Massachusetts where Berkshire Gas, Cape Light Compact, Eversource, Liberty Utilities, National Grid, or Unitil is the Program Sponsor.
  • Timeframe: Air source heat pump equipment must be purchased and installed between January 1, 2022, and December 31, 2022.
  • Contractor: Your air source heat pump equipment must be installed by a licensed contractor.
  • Type of home: Customers in complexes with five or more units, including buildings of one to four units that are part of larger complexes, are not eligible for whole-home rebates but may receive the partial home rebate amounts.
  • Your HVAC system: Heat pump equipment must be used to supplement or replace oil, propane, natural gas, or electric baseboard (resistance) as your primary heating system.
    • If supplementing or partially-displacing oil, propane, or natural gas heat, then integrated controls are required
    • If replacing a pre-existing heating system completely, you must make the weatherization recommendations made during a Home Energy Assessment prior to installing heat pumps. You’ll also need to complete and sign the Whole-Home Heat Pump Verification Form.
  • Equipment: Air source heat pumps must be listed on the Mass Save air source heat pump qualified product list. Depending on the heat pump system you’re installing, you may also need (and can get additional Mass Save rebates for) integrated controls, smart thermostats, air purifiers, or dehumidifiers. 
  • Equipment installation: You may need to get a post-installation verification inspection prior to rebate reimbursement. 
  • Form submission: You must completely fill out and sign the rebate form as well as include dated invoices. These must be submitted within 60 days of your heat pump installation.
  • Detailed terms and conditions: Like any rebate program, there are some additional details to know. While we detail the key thing to know for you in this guide, you can view the Mass Save heat pump rebate Terms and Conditions here for a full list of requirements.

Steps to getting a heat pump rebate

Usually your heat pump contractor will help you with submitting the proper rebate documentation, but this can vary depending on who you go with to install your heat pumps. Just ask them or look for a line item on your proposal that states something like: “we will assist the customer with rebate preparation for any equipment we install.”

Here are the steps you’ll need to take before you can claim your heat pump rebate:

1. Schedule your Home Energy Assessment

The first step to accessing most Mass Save programs including rebates and incentives is to get a no-cost Home Energy Assessment. You can call 1-866-527-7283 to schedule a virtual Home Energy Assessment. You’re eligible for a no-cost Home Energy Assessment if you:

  • Live in a single-family home or a one to four-unit home
  • Have full access to the house and the ability to install recommended instant saving products received (e.g., LED bulbs)
  • Be comfortable working with a Mass Save Energy Specialist over the phone and able to use technology such as video chat and/or emailing photos of your home
  • Are a residential customer of one of the Sponsors of Mass Save

2. Find a heat pump contractor near you

Before you can begin getting a rebate, you’ll first want to contact heat pump contractors to get them to provide a proposal with a recommended system design and pricing estimate. Using contractors participating in the Mass Save Heat Pump Installer Network ensures they are qualified, licensed, insured, and experienced with the Mass Save Residential Heating and Cooling program. Just like any major home update or project, it’s a good idea to get multiple quotes from heat pump contractors in your area to compare the equipment, recommendations, sizing, and costs.

If you’re using the Mass Save HEAT Loan, you’ll also need to work with your contractor to get the proper forms and documentation for that approval. 

3. Confirm your heat pump equipment is eligible for Mass Save rebates

This is something you’ll want to confirm, since in order to get your Mass Save heat pump rebate, you’ll need to make sure it’s on the approved product list, whether a central heat pump system or mini splits. Usually, your contractor will indicate this in your proposal as part of the equipment itemization.

4. Install your air source heat pumps

In order to get your rebate, you’ll first need to install heat pumps in your home and pay for the installation. You’ll coordinate all of this with your contractor.

5. Complete an online rebate form

Once you’ve installed your air source heat pumps and have all of your information compiled, you can complete the online rebate form for either your whole home or partial home heat pump system. This is the easiest and  quickest way to get your Mass Save heat pump rebate. The online form requires that you enter information, including:

  • If you receive electric utility services, gas utility services, or both
  • Who your utility company is for electric and/or gas 
  • If you are a residential or non-residential customer
  • Which products you’re applying for a rebate for (air source heat pumps and any supplemental products you’re getting such as integrated controls, thermostats, air purifiers, and dehumidifiers can all be added in at once)
  • They fuel type for your current heating equipment/system (natural gas, oil, propane, electric, or other)

Once you enter in that information, the Mass Save rebate online portal will show you which rebates you have available based on your entries.

Then you can go through the six step process to submit your rebate. Click the “Start here” button for each to begin the rebate submission process. 

The first step will be providing the payee information —who will be getting the rebate. Usually this will be you, the homeowner, since you’ll likely need to pay for the installation before getting the rebate. 

Most heat pump contractors require an upfront payment to confirm the installation date and order your equipment, which will usually be half or a third of the estimated total cost, depending on your contractor. If you pay half upfront, usually you must pay the remaining half when installation is complete. If you pay a third upfront to confirm your project, you’ll likely be required to pay another third the day the installation actually begins, and the final third when it’s completed.

You’ll then need to enter in your electric and/or gas utility information, including your account numbers, address, and the name the accounts are listed under. 

Next, you’ll enter the product information based on the type of system, whether partial- or whole-home and whether you are installing a central, multi-zone, or single-zone system. This information will all be available from your contractor and their proposal or quote.

Based on your selection from the drop-down list, you’ll then enter in the details on your equipment. Usually you can expect to enter information such as the manufacturer and model number, purchase unit price, purchase date, installation date, pre-existing fuel type, if you’re fully replacing your current heating system, your housing type (single-family or number of units in your complex) and, if applicable, the integrated control model. 

Next, you’re asked to enter in some survey information.

You’ll then need to upload your documents; usually this will include your proposal with your contractor’s information, the equipment they installed, and total cost as well as an invoice or documentation noting the installation date and proof of payment.

You’ll then agree to the terms and conditions and submit your rebate for processing.

6. Print out a copy of the form

Finally, if you want to keep it for your records, you can print out the rebate form

How long does it take to get a Mass Save heat pump rebate?

Once you submit your rebate form online, Mass Save indicates you should allow six to eight weeks for your rebate to be processed and mailed, though there could be delays. It’s important to make sure you have everything included as it will take longer for them to process payment if any information or documentation is missing from the application. Mass Save Sponsors note that they reserve the right to conduct an on-site verification that the equipment has been installed. 

Additional heat pump rebates available based on income eligibility

The Sponsors of Mass Save launched another program in August 2022 — Enhanced Heating & Cooling Equipment Rebates— to help make installing heat pumps more accessible and affordable. If you meet certain income eligibility, you’re now able to get up to a $16,000 rebate when installing air source heat pumps in place of an oil, propane, or electric resistance system.

Confirming eligibility for Mass Save Enhanced Heating & Cooling Equipment Rebates

First, you’ll want to make sure you qualify for this additional heat pump rebate. The Mass Save website lists eligibility details out:

Number people in householdAnnual household income (2021 - 2022 heating season)
1$40,952 – $54,601
2$53,552 – $71,401
3$66,152 – $88,201
4$78,752 – $105,001
5$91,352 – $121,802
6$103,952 – $138,602

There’s also an online tool to pre-qualify, create an account, and submit income verification and the Mass Save website lists details on eligibility and what you’ll need to verify income here.

The details on these additional rebates

As part of this program, you’re eligible to get up to $16,000 in total heat pump rebates depending on the system you install:

  • $8,000: partial-home air source heat pump system supplementing an existing oil, propane, or resistance heating system; must also install integrated controls
  • $16,000: whole-home air source heat pump system replacing an oil, propane, or resistance heating system

In addition to verifying your income eligibility, you’ll need to live in 1-4 unit home as mentioned above and follow most of the same steps outlined above to get a home energy assessment, make any weatherization upgrades recommended first (usually these are low or no-cost updates), work with a licensed contractor, and install equipment on the qualified heat pump list between July 1, 2022 and December 31, 2022.

There is one note if you’re a Cape Light customer — in that case, you are eligible for a rebate covering 80 percent of the installed cost of qualifying heat pump systems.

Other ways to save on energy-efficient upgrades in Massachusetts

The Mass Save heat pump rebate isn’t the only way you can save on making efficient clean energy upgrades in your home. Several other rebates are available for the integrated controls that switch between your heat pumps and a backup fossil fuel powered heating system, weatherization and home insulation, appliances, appliance recycling, and more. Mass Save Sponsors offers Massachusetts residents incentives and rebates on other energy-efficient options as well, including:


The Mass Save HEAT Loan offers Massachusetts homeowners up to $25,000 in interest-free financing for up to seven years to make energy-efficient home upgrades like the installation of air source heat pumps (central or ductless mini split), ground source heat pumps, heat pump water heaters, insulation, and more. Check out our complete HEAT Loan guide.

Integrated controls

Massachusetts residents can qualify for an additional integrated control rebate. Integrated controls are either approved control packages or dual fuel thermostats that switch between a heat pump and a backup heating system. The rebate amount is $500 per indoor unit, up to $1,500. See details of the integrated controls covered in the rebate and the online rebate submission form.

Income-specific programs

There are two additional income-specific programs available if you meet certain income requirements: the Enhanced Residential Program and the Income Eligible Program. The Enhanced Residential Program provides free insulation upgrades and increased rebates on energy-efficient heating equipment. If you qualify for the Income Eligible Program, you may be able to get free insulation and air-sealing upgrades and new home appliances, heating systems, and dehumidifiers. Use Mass Save’s online tool to see if you qualify for these income-based offers.

Learn about all of the Mass Save rebates and incentives available to you.

Want to designate your rebate to your contractor?

Mass Save also lets you designate your rebate payment directly to your heat pump contractor if they are registered with and approved by Mass Save. If contractors are not registered and approved, or if the payee information is different from the account holder’s information, it will extend the processing time since they’ll need to verify the payee. 

Several homeowners we spoke with about heat pump installations in Massachusetts using the Mass Save rebates indicated they needed to pay their contractor themselves and then retroactively applied the $10,000 rebate to pay down their HEAT Loan. 

However, there is an initiative that started in June 2022 to allow members of the heat pump installer network to apply for the rebate on behalf of their customer, deduct that amount from the invoice, and receive their rebate in two to three weeks. Rebate processing will take longer if required information or documentation is missing and a post-installation inspection may still be required prior to receiving your rebate payment.

Additional resources for Mass Save heat pump rebates

Here are some additional Mass Save resources online and contacts if you need questions answered:


Additional Mass Save heat pump resources

Mass Save contact information

The main contact information listed for the Mass Save heat pump rebates program is: 

This will get you to someone who can help with inquiries about additional program details, rebates offered on qualified equipment, or the status of your rebate submission.

Also, you can call 1-866-527-7283 to schedule a free Mass Save energy assessment and ask questions about the HEAT Loan process.

Your contractor may also be able to help you with Mass Save details. Still, you will want to confirm that any information you receive is correct via the Mass Save portal and documentation since the details, offerings, and incentives may change over time.

Save more by powering your air source heat pumps on solar

You can maximize your savings from air source heat pumps by heating and cooling your home with solar energy. Create a free account on the EnergySage Marketplace to quickly get solar quotes, compare offers from qualified, trusted local installers, and speak with an Energy Advisor if you have any questions. You can also get a quick savings estimate using our Solar Calculator. If you’re looking to install air source heat pumps in your home and want to power them with solar electricity, just note it in your account so potential installers can design a system that will accommodate this addition. Some solar installers can also help you design and price out a heat pump system for your home (or refer you to someone who can).

Note: this article was originally published on June 30, 2022 and has been updated to reflect new Mass Save programs and information.

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About Ellen Sirull

Ellen covers clean energy finance, electric vehicles (EVs), and EV charging as part of EnergySage’s consumer education team. She brings twenty years of experience helping consumers navigate complex topics. Ellen’s writing and insights have been featured on sites such as Money Tips, Experian, and CNBC. She graduated from the University of Georgia with a Bachelor's Degree in Journalism and earned an MBA at Kennesaw State University. Ellen and her family are proud owners of both a solar system and an EV, with a $0 monthly electric bill being their favorite part of using clean energy.