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  • Angel B Home – Shelburne Falls | Case Studies | Mass Save

    A virtual Home Energy Assessment helped Angel identify insulation and heating upgrades that improved comfort, reduced drafts, and boosted year-round energy savings in her 1960s home.

  • Dick MacDonough Home – Arlington | Case Studies | Mass Save

    Heat pump installation and rebates helped Dick replace oil heating, improve comfort, and reduce carbon emissions across 2,000 square feet of living space.

  • C10.2 TEDI: Common Mistakes & How to Avoid Them

    The Targeted Performance Path of the Massachusetts Stretch Code 2023/2025 requires projects to use energy modeling to demonstrate compliance with heating and cooling Thermal Energy Demand Intensity (TEDI) targets. This one-hour training focuses on common mistakes observed in projects following the Targeted Performance Path and provides strategies for identifying and avoiding them.

  • The Engineers Perspective on the Passive House Process

    A panel of experienced MEP engineers will discuss heating, cooling, ventilation, and domestic hot water systems focusing on lessons learned from their experience on Passive House certified projects.

  • Amanda Kingsley | Case Studies | Mass Save

    Amanda Kingsley and her family have lived in their late‑1800s home in Shelburne Falls, Massachusetts, since 2002. Like many older New England houses, the home relied on a patchwork of heating sources over the years, including an aging oil furnace and a pellet stove, which led to uneven temperatures, system noise and ongoing maintenance challenges.

  • Hassan Apartments | Case Studies | Mass Save

    Hassan Apartments is a 50-year-old public housing community for seniors and adults with disabilities in the Hyde Park neighborhood of Boston, Massachusetts. The building is owned and managed by the Boston Housing Authority (BHA), which partnered with Eversource, a Mass Save® Sponsor, to modernize the heating and cooling systems in all 100 units.

  • Energy Facts

    Energy Facts

  • 0% Interest Financing | Residential | Mass Save

    Check your eligibility for a 0% interest loan on a new heating system, water heater, central air conditioner, heat pump, or insulation.

  • Mass Save Upgrade Heating and Cooling Equipment Guide

    High-efficiency equipment can make your home more comfortable, efficient, and budget-friendly. The Sponsors of Mass Save® provide resources and rebates that help you upgrade.

  • Beth Israel Deaconess Medical Center – Boston | Case Studies | Mass Save

    Demand-controlled laboratory ventilation at BIDMC reduced wasted heating and cooling while maintaining safety through real-time air monitoring and variable airflow control.