Heat pumps work by pulling heat from the air or from underground and using it to heat the building in the colder months. Heat pumps then flow in reverse and use a refrigerant to cool your business in the warmer months.
Weatherization (including insulation and air sealing) at your facility is important to help ensure proper heat pump operation. For more information on how Mass Save Sponsors can help, please visit our Building Insulation and Weatherization page. If you're looking for a contractor to help with your heat pump installation, please visit our Heat Pump Installer Network page.
Types of Heat Pumps

Air Source Heat Pumps
Air source heat pumps extract heat from the air outside and distribute it inside. During warmer months, this process is reversed to provide cooling. These highly efficient systems can cut your heating and cooling costs by up to 30 percent.
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Variable Refrigerant Flow Systems
This heat pump serves as a great solution for businesses where installing ductwork is not possible. Using a single outdoor condensing unit to connect with one or more indoor air handlers, this option provides clean heating and cooling for your business.
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Water Source Heat Pumps
A water source heat pump uses the same concept as an air source pump for drawing out heat from the outdoor air. The difference is that it delivers the heat via water piped through the building (rather than hot air).
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Ground Source Heat Pumps
Ground source heat pumps extract heat from the ground during cold weather and distribute it throughout your business. During the warmer months, this process is reversed to provide cooling. This system is the most efficient type of heat pump.
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Packaged Terminal Heat Pumps
By replacing old inefficient Packaged Terminal Air Conditioning (PTAC) units with a Packaged Terminal Heat Pump (PTHP) you can reduce your building’s heating and cooling costs significantly.
Learn MoreC&I heat pump installers now have free access to online courses. The Mass Save Energy Efficiency Learning Center (EELC) is an online distance-learning portal which features trainings on technical topics, best practices, sales and marketing, and more. Register now to browse the catalog of courses.
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