Are you ready to investigate ground-source heat pumps for your home? Find an installer that serves your community.

What is a Ground-Source Heat Pump?

Ground-source heat pumps serve as an all-in-one, central heating and cooling system – no backups required. Also known as a geothermal heat pump, it is the most efficient heating and cooling system available and is extremely reliable even on the coldest days.

Indoor Unit

Outdoor Installation

The Technology

How It Works

  • Also known as a geothermal heat pump, a ground-source heat pump exchanges heat through piping buried in the ground either in vertical boreholes, long narrow trenches, or an existing groundwater source.
  • In the winter, it absorbs the abundant, renewable heat in the ground to heat your home.
  • In the summer, when the air is warmer than the ground, it uses the cooler temperature of the earth to reduce the temperature of the air in your home.
  • Ground-source heat pumps most often pair with ductwork, although there are hydronic options available.


 Explanation of Ground-Source Heat Pump

This Old House | 3 min. 55 sec.

Why Should I Consider a Ground-Source Heat Pump?

A ground-source heat pump offers the most energy efficient system for heating, cooling, and potentially hot water in a single unit.

Lower Greenhouse Gas Emissions

Lower greenhouse gas emissions than heating and cooling with oil, propane, natural gas, and electric resistance


Save money on utility bills compared to heating with propane, oil, or electric resistance

See MassSave’s HEAT Loan

All-in-One System

Heating, cooling, and potentially hot water in one system

Out of Sight

Once installed, no equipment is visible from outside

Things to Consider

Is a ground-source heat pump right for me?

Switching to ground-source could save you hundreds to thousands of dollars a year on your home energy bill.

If your furnace or boiler is reaching the end of its expected lifetime, before it fails consider replacing it with a ground-source heat pump system.

Ground-source heat pumps are the most efficient system available, but will cost more up front to install. If you’re planning on moving in a few years, you might not be able to benefit from all of the potential energy savings offered by ground-source.

Ground-source heat pumps can be cheaper to install in new construction projects. Consider designing your home for geothermal from day one!

Ground-source heat pumps don’t have outdoor condensers like central air conditioners or air source heat pumps. All of your outdoor equipment will be buried in the ground, and the heat pump itself will take up no more room than your existing furnace or boiler.

Your Guide to Ground-Source Heat Pumps for Your Home

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