Cambridge Green Heating and Cooling

Green heating and cooling technologies are an efficient and cost-effective way to make your home comfortable, all year round. These technologies will help save you money on your energy costs for years to come and also help Cambridge decrease its overall carbon footprint, benefiting your neighbors and our city.

Air Source Heat Pumps

Air source heat pumps are a clean technology you can use to both heat and cool your home. There are both economic and environmental benefits to installing an air source heat pump. Learn all about air source heat pumps and whether they’re the right option for you.

Solar Hot Water

You can use the power of the sun to heat water for your home. Using solar hot water can save you on electricity and gas costs, while decreasing your carbon footprint. Read on for more information about solar hot water technology, the costs of installation, and more.

Why Green Heating and Cooling?

Environmentally Friendly

The widespread use of green heating and cooling technologies means less greenhouse gas emmisions and pollutants entering our atmosphere.

Economic Benefits

Though often more expensive upfront, both air source heat pumps and solar hot water systems will save you money on your energy bills throughout their lifetime.

Health and Wellness

As Cambridge's reliance on fossil fuels lessens, so will the amount of pollutants in the air, leading to higher air quality for us and the country as a whole.


Air source heat pumps and solar hot water systems operate very quietly in comparison to other heating and cooling technolgies, ensuring comfortability.

Incentives for Green Heating and Cooling


Solar hot water and air source heat pump systems installed in Massachusetts qualify for the Alternative Energy Certificate (AEC) program. With this program, non-emitting renewable technologies generate certificates based on their energy production for homeowners to sell to utilities. The revenue earned from these certificates will help you to further decrease your overall investment for solar hot water or air source heat pump installation. Learn more about AECs by visiting the Mass DOER website.


Massachusetts has a host of incentives and rebates available to help decrease your investment for a solar hot water or air source heat pump system. Learn more about rebates available from Mass Save, or apply for the rebates here.

Mass Save HEAT Loan

If you're installing solar hot water or air source heat pumps, you may be elgible for a 0% interest HEAT Loan from Mass Save to finance the projects. You can finance up to $25,000 of home energy efficiency upgrades. Find out more about Mass Save's HEAT Loan program. 

Cambridge Green Heating and Cooling in Action 

"Easy way to reduce our carbon footprint by using the heat of the sun!"

Mina of Cambridge installed a few solar collectors to heat her multifamily residence. The system provides hot water for two families in the building, and covers roughly 50-74% of their total hot water needs. They decided to install solar thermal after learning that their roof wasn't good for solar PV because of limited roof space- with this technology, she's still benefiting from solar energy and reducing her carbon footprint!

Read more about her solar hot water installation.

Mini-split installation

Seth F. installed mini-splits for his mutli-family home in Massachusetts. With the  zero-interest HEAT loan allowed him to put no money down for his installation and still save $1,000 a year. His mini-splits are paired with solar PV and insulation from MassSave. The system also covers 100% of his heating and cooling needs: "Don't be afraid of relying on heat pumps as your sole heating system--cold climate heat pumps have plenty of power as long as your home is insulated properly."

Learn more about Seth's air source heat pump installation.

Find Local Installers for Green Heating and Cooling

Go to the Solar Planner