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• Mass Save® & ESMAC Heat Pump Water Heater Training

  Join us for a virtual contractor training about heat pump water heaters.

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  The Benefits of Switching to a Heat Pump Water Heater | Mass Save

  February 4, 2026

  Upgrade to a heat pump water heater for enhanced efficiency and savings. Discover how to make the switch and improve your home's energy use.

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  Installing a New Heating System: A Massachusetts Homeowner’s Guide | Massachusetts | Mass Save

  March 12, 2026

  Learn how to choose the right heating system for your Massachusetts home and what to expect during installation from planning to hiring a qualified contractor.

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  What is a Heat Pump and When Should You Make the Switch? | Massachusetts | Mass Save

  December 17, 2025

  Learn what a heat pump is and when you should consider switching to it. Find out about ways you can save energy with heat pumps while using rebates

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  Seal in Your Savings: Why Insulation and Air Sealing Matters for the Heating Season | Massachusetts | Mass Save

  November 14, 2025

  Now’s the time to insulate. See how improving your home’s insulation and air sealing boosts comfort, reduces energy use, and helps you save for the heating season.

• Heating and Cooling Glossary

  Expand your knowledge with this glossary of heating and cooling equipment and installation terms.

• Upgrading to Heat Pumps from Existing Commercial HVAC Systems

  Training on heat pump technology and how to upgrade each type of existing commercial HVAC system to a heat pump.

• Mass Save | Water Heating & Pipe Insulation 

  Hot water costs can add up quickly—especially in a business. Upgrade to higher- efficiency systems to lower heating expenses, decrease equipment maintenance time, lower greenhouse gas emissions, and create a comfortable work environment.

• Mass Save | Ground Source Heat Pumps

  Ground source/geothermal heat pumps extract heat from the ground during cold weather and distribute it throughout your business. During warmer months, this process is reversed to provide cooling.

• Mass Save | Water Source Heat Pumps

  A water source heat pump uses the same concept as an air source heat pump for drawing out heat from the outdoor air.