Ask This Old House - Season 7 Episode 13
Plumbing & heating expert Richard Trethewey and host Kevin O'Connor replace an old tank-type water heater with a new, energy-efficient "tankless" unit fueled by propane. Then Richard and Kevin, along with landscaping contractor Roger Cook and general contractor Tom Silva ask, "What is it?" Then, Roger helps a homeowner level his sagging concrete walkway using a method called "mudjacking," and Tom shares a viewer tip for removing hammer dents from a piece of wood.
- genus: Documentary
- Studio: PBS
- keyword: home renovation
- cast: Richard Trethewey, Norm Abram, Roger Cook, Kevin O'Connor, Tom Silva, Steve Thomas Rooney
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