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
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