Over $1.7 Million Saved in Andrews & McGlynn HVAC Project

Medford, MA — In conjunction with the project team and Medford Public schools, the City of Medford saved over $1.7 million towards the Andrews & McGlynn Middle School HVAC project by recently pursuing modern technology that reduces emissions and improves building performance.

Rather than purchasing direct equipment replacements for each building’s cooling system, the project team opted for high-efficiency heat pumps. These upgrades will enhance the reliability and operation of heating and cooling systems for the buildings, ensuring safe & comfortable learning environments for students and staff. This initiative also supports Medford's participation in the global Race to Zero campaign, a commitment to reduce greenhouse gas emissions in the city by 50 percent by 2030.

Effects at Andrews Middle School

At Andrews Middle School, the project team replaced one air-cooled chiller with a new air-to-water heat pump that will provide both heating and cooling to classrooms. Additionally, four air-cooled condensing units were replaced with new variable refrigerant flow (VRF) heat pump systems, now serving the gymnasium, cafeteria, and administrative areas.

The project is expected to reduce the school’s natural gas usage and Scope 1 carbon dioxide emissions by approximately 47 percent. National Grid has pre-approved $687,285 in utility rebates for the project, which will be paid to the City upon successful completion.

Effects at McGlynn Middle & Elementary School

At the McGlynn Schools, two air-cooled chillers were replaced with air-to-water heat pumps to serve classroom heating and cooling needs. Seven air-cooled condensing units were also replaced with VRF heat pump systems, supporting the gymnasiums, cafeteria, auditorium, and administrative spaces.

This project is projected to reduce natural gas usage and Scope 1 carbon dioxide emissions by approximately 51 percent. Additionally, National Grid has pre-approved $1,091,553 in utility rebates, to be disbursed upon project completion.

What’s Next

Work will continue on each building’s roof and HVAC systems throughout the Spring and Summer 2026. The project is expected to be completed in time for the 2026/27 school year.