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  1. #1
    Join Date
    Mar 2007
    Location
    Philadelphia PA
    Posts
    3,177

    Default single wall extravaganza

    100+ year old row house in Philadelphia.
    The single wall vent from the gas furnace and water heater in the basement passes through the fireplace hearth and heads up the chimney, out of sight, for three more floors. I couldn't get to the roof to see what it was like up there. I could see daylight next to the vent when I looked up from the fireplace.

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  2. #2

    Default Re: single wall extravaganza

    VERY CREATIVE! And a hell of a lot of work to install. I wonder if they lowered it down from the top or built it from the bottom and kept shoving it up as they added sections? Do you put the cap on first? On second thought, if you leave the end open it will scrape the creosote off the chimney walls as it goes up and accomplish two jobs at once! A bit messy but that's what shop vacs are for.

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  3. #3
    Roy Summerville's Avatar
    Roy Summerville Guest

    Question Re: single wall extravaganza

    Did you at least wright up yhe fact that you could see day light up through the top and recommend futher evaluation?Roy.


  4. #4
    Join Date
    Mar 2007
    Location
    Philadelphia PA
    Posts
    3,177

    Default Re: single wall extravaganza

    Quote Originally Posted by Roy Summerville View Post
    Did you at least wright up yhe fact that you could see day light up through the top and recommend futher evaluation?Roy.
    I wrote the whole dang thing up, Roy!


  5. #5
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,633

    Cool Re: single wall extravaganza

    Philly is full of similar excursions into the Twilight Zone. Often, they will brick up the Fp opening then stuff a pipe into the ash dump and hope it finds its way out. I've found several cases where they lined the chimney with 12" sections of homemade pipe connected with just two steel screws. The joints are so loose the whole thing resembles a centipede, except having much larger gaps btw sections. When the screws corrode away, sections drop where they block the flue. I did one up near the Art Museum (Rocky's steps) where the fireplace was still being used with the slinky from below similar to the pics John posted. However, once it got to the second floor, the flue opened to a warm air register into the room! Yes, the fireplace gases would vent right into that room. The heater slinky continued on to the top of the crumbling chimney. I relined the fireplace & installed vented logs. I ran B-vent out the wall and up the side of the house.

    All sorts of monsters lurking in them holes...
    Bob

    Keep the fire in the fireplace.

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