TV This Old House - Season 1 Episode 4 : The Dorchester House - Insulation and Plumbing This Old House - Season 1 Episode 4 : The Dorchester House - Insulation and Plumbing 5.557/10 by 35 users It's time to insulate the house, remove the old furnace, and replace it with a new-energy-efficient heating system. Details Casts Posters Images Title This Old House - Season 1 Episode 4 : The Dorchester House - Insulation and Plumbing Alternative Titles 这个老房子, This Old House Hour Subtitle Available ETC. First Air Date 1979-01-01 Last Air Date 2025-05-29 Number of Episodes 1188 Number of Seasons 46 Genres Documentary, Reality, Networks PBS, Casts Plot Keywords , Episodes List This Old House Season 1 :Episode 1 The Dorchester House - A Tour of the House 1979-01-01 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 2 The Dorchester House - House History and Kitchen Plans 1979-02-01 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 3 The Dorchester House - Frozen Pipes and a New Kitchen Wall 1979-02-15 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 4 The Dorchester House - Insulation and Plumbing 1979-02-28 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 5 The Dorchester House - Leveled Ceilings and Kitchen Lighting 1979-03-01 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 6 The Dorchester House - Heating Plan, Kitchen Skylight 1979-03-15 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 7 The Dorchester House - Roof Repairs, Kitchen Plaster Work 1979-04-01 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 8 The Dorchester House - Insulation, Historic Paint Colors 1979-05-01 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 9 The Dorchester House - Deck Foundation 1979-05-15 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 10 The Dorchester House - Exterior Planning 1979-05-30 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 11 The Dorchester House - Flooring Install 1979-06-01 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 12 The Dorchester House - Adding Curb Appeal 1979-06-15 TV's original home-improvement show, following one whole-house renovation over several episodes. This Old House Season 1 :Episode 13 The Dorchester House - The Finished Product 1979-06-30 TV's original home-improvement show, following one whole-house renovation over several episodes.