This Old House

North Shore Farmhouse | 400 Years of Home Technology

Drilling begins on a geothermal system that will reduce the Harbs' energy bill by almost 50-percent. Norm tours local first-period homes with housewright Matt Diana. Kevin travels to the Vermont factory to see the stairs and wall panels being built. Back on the North Shore, Kevin learns about a new technology to seal ductwork.

This Old House TV Season 37

This Old House TV Season 40