Ask This Old House - Season 7 - Eps 13: Energy-Efficient Water Heater; Leveling a Concrete Walkway
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.
About Ask This Old House

Title: Ask This Old House
First Air Date: 2002-10-10
Last Air Date: 2025-02-20
Status: Returning Series
Rating: 4/10 (from 16 votes)
Language: EN
Seasons: 23
Total Episodes: 615
Network: PBS
Genres: Documentary
Production Companies: This Old House Productions, GBH, WETA
Synopsis
The crew at This Old House take on some pretty big projects, which means they can only work on one or two houses a year. But homeowners have a virtual truckload of questions on smaller projects, and the This Old House crew is ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by viewers - and the crew even makes house calls!
Cast

Richard Trethewey
Himself

Norm Abram
Himself

Roger Cook
Himself

Kevin O'Connor
Host

Tom Silva
Himself

Steve Thomas Rooney
Himself