Advice for HVAC renovation in Eastern MA

We are adding a small addition to our house (c1960) and hoping to upgrade our heating system as part of the process. We are about 20 miles west of Boston. We currently… We are adding a small addition to our house (c1960) and hoping to upgrade our heating system as part of the process. We are about 20 miles west of Boston. We currently…Read MoreGreenBuildingAdvisor