What’s old is new again: homeowners in Scotland have insulated their home with wool off the backs of the sheep from their farm. They also have incorporated rocks found in their farmland fields for stonework, and wood harvested from their acreage in their home as well. Add to that triple glazed windows, under floor heating by ground–source heat pump, water from a borehole, and renewable energy from a wind turbine, and you get a pretty sustainable home. Their working farmhouse also doubles as a guesthouse where they serve meals from ingredients either grown from their farm or others nearby.
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