In this video, Ask This Old House plumbing and heating expert Richard Trethewey takes host Kevin O'Connor on a tour of Germany with an eye toward renewable energy and sustainable home heating.
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Homeowners have a virtual truckload of questions for us on smaller projects, and we're ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.

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What Germany Can Teach Us About Home Energy | Ask This Old House
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