Airtight Insight Welcoming Spring 2025!



March 21, 2025

Duct System Performance Evaluation for Heat Pumps 

When changing from a furnace to a heat pump it is critical to have a comprehensive duct system performance evaluation. Measured performance provides the necessary assurance that the heat pump system will deliver heating and cooling for the whole home and to every room. 


Mass Save Incentive Programs 2025 

Renovations and Additions 

Incentives for homeowners and their builders who are going through renovations and/or additions of existing single-family homes and multi-family buildings, three stories or less. If energy upgrades are substantial the incentive can be as high as $30,000 for a single family home. Market transformation adders such as heat pumps will increase rebate amount by $1,250 per 12,000 btus up to $10,000 for a whole home transformation.
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New Construction - All Electric Homes

Incentives for builders or owners who are building and designing high-performing, all-electric single-family or 2–4-unit homes. There are three levels of incentives. Two, three, and four-unit dwellings provide substantial incentives as well. A certified HERS Rating will enroll the home in the program and is necessary to help meet these levels.
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Heat Pumps for Heating & Cooling – Residential & Business

The whole-home heat pump rebate incentive is $3,000 per ton, capped at $10,000 in 2025. Mass Save provides a Whole Home incentive of $10,000 and a Partial Home incentive of $1,250 per ton (12,000 BTUs).
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Income Eligible Residential Programs

Income-based incentives can be up to $16,000 per whole home.
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Heat Loan Program

The heat loan program for up to $25,000 continues in 2025.
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Water Heaters, Appliances, & More Rebates
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Municipal Electric & Gas Companies

A good place to start with most municipal electric and gas companies is with Abode Energy Management which assists municipalities with heat pump programs. Their website has links to many municipalities and provides step-by-step instructions on how to proceed when considering heat pumps.


Mass DOER

Mass Department of Energy Resources Alternative Energy Credits program is continuing to offer incentives for alternative electricity technologies such as heat pumps and geothermal systems. It is a market-based program that has rebounded recently and now pays significant incentives for different size homes.


Proposed Electric Rate Decrease for Heat Pumps

The Massachusetts Interagency Rates Working Group (IRWG) “was formed to advance near- and long-term electric rate designs that align with the Commonwealth’s decarbonization goals.” In its Near-Term Rate Strategy Recommendations, the IRWG recommends significantly deeper discounts for homes using heat pumps, which could be in the range of 12 to 17 cents/kWh during the heating season, and would apply to all home electricity use. On January 31, 2025, the MA Department of Energy Resources petitioned the MA Department of Public Utilities to investigate seasonal rates for heat pumps that provide deeper discounts.
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The Almost Invisible Heat Pump!

Visit Bridge the Aid Gap and help young people enter the construction industry.

The purpose of Airtight Insight is to help inform builders, architects, building inspectors, and the general public about residential building science, the MA energy code, financial incentive programs, and heat pump technology.