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Stove Pipe - Horizontal Max Distance?

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by jjhpf, Dec 24, 2007.

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  1. jjhpf

    jjhpf New Member

    Joined:
    Dec 6, 2007
    Messages:
    16
    Loc:
    Michigan
    From insulated Tee - I need to go six feet
    Direction say "not to exceed 24 inch"
    What effect will six feet have on operations?
    Harder to start fire?
    Is cement board on ceiling considered combustible?

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  2. BrownianHeatingTech

    BrownianHeatingTech Minister of Fire

    Joined:
    Oct 5, 2007
    Messages:
    1,253
    Loc:
    Northwood, NH
    It will reduce the draft, and may cause condensation issues.

    The cement board is typically an acceptable fire protection, if you install it with 1" spacers behind it. Zero-clearance board is preferrable (2" thick mineral wool board), and is rated for (as the name implies) zero clearance to the flue pipe. Just use fender washers and decently-long sheetrock screws.

    Joe
  3. jjhpf

    jjhpf New Member

    Joined:
    Dec 6, 2007
    Messages:
    16
    Loc:
    Michigan
    Thanks Joe - I will be coming out of tee at 30 deg for the first four feet
    then stright into stove
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