• Operating costs are typically lower than oil, propane, or electric resistance, and about the same as (or marginally higher than) natural gas heating  
  • Operates efficiently as a whole-building solution in cold climates, like Massachusetts


  • Consistent home temperature  
  • Compatible with zoned thermostats  
  • Quiet  
  • Safety
  • No on-site fossil fuels

Flexibility & function

  • Provides heating, cooling, and potentially hot water in a single, efficient system 
  • Most efficient heating and cooling system available  
  • Can use ductwork that is already installed in homes 


Lower greenhouse gas emissions

  • Lower greenhouse gas impact than fossil fuels  
  • Potential to have zero greenhouse gas impacts when paired with solar photovoltaic panels or 100% renewable electricity

We're In This Together

Pledge to reduce your home's carbon footprint by replacing old systems and appliances with clean energy technologies over time.

Join the Clean Energy Transformation

Let's work together to reduce greenhouse gas emissions from our homes and build a clean energy future for Massachusetts.