Ask This Old House - Season 20 Episode 18
Richard shares how he became a plumber and what he loves about his trade; Ross talks about smart thermostats and their features; Heath explains how to understand switch legs; Tom replaces an old, rotted porch column base.
- 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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