

Ask TOH | Tankless Heater, Retaining Wall
Ask This Old House solves the steady stream of home improvement problems faced by our viewers - and we make house calls! The series features some familiar faces, including Kevin O'Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Jenn Nawada.

Ask TOH | Tankless Heater, Retaining Wall
Ask This Old House Episode 11 | 23m 43s | CC
Richard heads to Milwaukee to install an instantaneous water heater; Tom demonstrates some techniques for cutting straight edges with a circular saw; Mark rebuilds a retaining wall that was stacked with the wrong material.