REPLACING a zero clearance fireplace with a wood burning insert

sabreracer Posted By sabreracer, Dec 5, 2005 at 7:05 PM

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  1. sabreracer

    sabreracer
    New Member 2.
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    Dec 5, 2005
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    I have recently removed my DESA 36" prefab zero clearance fireplace and I am installing a fireplace insert. I had a mason friend come in and build up the area behind the hearth with block, and then we finished it off with firebrick. I now have fire brick under, and at least 8" masonry around the sides. The prefab was using double wall(12" and 8") flue pipe. My question is, can I just extend the existing pipe down to the fireplace insert, or do I need to use triple wall, or am I way off here? What I DON'T want to do is burn my house down. Please let me know if anyone out there has done this, or attempted this and let me know your ideas. Thanks in advance.

    Travis
     
  2. Shane

    Shane
    Minister of Fire 2.
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    Nov 21, 2005
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    Loc:
    Casper Wyoming
    Don't do what you're doing then. Install an EPA rated Zero Clearance.
     
  3. heatxchanger

    heatxchanger
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    Nov 25, 2005
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    Travis,

    You need to use the exact flu system that your new insert was designed for. Most modern, EPA approved, high efficiency, stoves and inserts use a 6" diameter flu system. I am referring to the diameter of the pipe that the combustion gases actully flow through (the inside pipe).
     
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