Heat Pump Water Heaters

Lower your water heating bills and save on equipment costs.

An Energry Efficient Electric Heat Pump Water Heater

The Sponsors of Mass Save® offer instant savings of $750 to residential customers that have a licensed plumber install a qualified heat pump water heater when replacing an existing residential electric, propane, natural gas, or oil water heater.

How does it work?

 Reducing the upfront cost of heat pump water heaters makes them cost competitive with traditional water heating systems, while being up to three times more efficient. There are two ways to receive an instant rebate on qualifying heat pump water heaters, both of which eliminate the need to fill out any paperwork.


  • 1

    Work with an installer. When your installer purchases a qualifying unit at a participating distributor, an instant rebate of $750 will be automatically applied to the cost of the equipment and these cost savings will be applied directly to your installation invoice.

  • 2

    Purchase a qualifying unit from a participating retailer. The Sponsors of Mass Save® have partnered with several retailers across the state to offer you an instant in-store rebate of $750. You may purchase a heat pump water heater directly from the retailer to receive the instant rebate. Either visit https://e-rebates.org/masssave_hpwh or text MAHPWH to (413) 422-6229 to validate your eligibility and receive a code. Present the code at the register and an instant rebate of $750 will be applied to the purchase price.

Instant in-store rebates are available at the following Massachusetts retailers:

  • Home Depot
  • Lowe's


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.



The $750 instant savings is available for equipment meeting the following criteria:

  • Uniform Energy Factor (UEF) greater than or equal to 3.2
  • 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.
  • Equipment purchases and installations made between January 1, 2022, and December 31, 2022, are eligible.
  • The new system(s) must be replacing an existing residential electric, propane, natural gas, or oil water heater.
  • Equipment is recommended to be installed by a licensed plumber.
  • Equipment installation may be subject to a verification inspection.
  • Equipment must be installed in a residential home with 1-4 units.
  • Your contractor can receive a $750 instant rebate on eligible models through participating distributors listed here. For more information about program details and the rebates offered on qualified equipment through participating distributors call (617) 440-5468 or email [email protected]
  • You may purchase a heat pump water heater directly from Home Depot or Lowe's to receive a $750 instant rebate. For more information on instant rebates through participating retailers call (800) 232-0672 or email [email protected].