Thimble extension?

Zjacobs4 Posted By Zjacobs4, Nov 5, 2018 at 4:18 PM

  1. Zjacobs4

    Zjacobs4
    New Member 2.
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    Nov 5, 2018
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    Loc:
    Baltimore
    I’m purchasing a used quadrafire mt Vernon stove off Craigslist and I’ve been researching how to properly install the stove. I plan on putting it in my basement. The basement is finished and the drywall is about 4 inches from block etc and the total distance to the outside is probably about 12-18 inches (rough estimate). The wall thimble appear to only accommodate up to about 8 inches in length. Any tips for installation would be greatly appreciated.
     
  2. MikeWard

    MikeWard
    New Member 2.
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    Nov 1, 2018
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    Loc:
    Poplar Ridge NY
    I extended my thimble with a piece of aluminum coil and sheat metal screw wrapped the seam in 3M HVAC tape thimble is now seamless
     
  3. JRemington

    JRemington
    Feeling the Heat 2.
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    Nov 4, 2017
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    Loc:
    Belleville New York
    You can buy a 1 ft piece of 8 in stove pipe and cut it to length
     
  4. zrock

    zrock
    Feeling the Heat 2.
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    Dec 2, 2017
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    bc
    Do u even need a thymbal with concrete?

    Sent from my SM-G903W using Tapatalk
     
  5. rich2500

    rich2500
    Minister of Fire 2.
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    Nov 19, 2005
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    Loc:
    Berks County PA.
    How about just using the inner half of the thimble cut down to the 4 " to pass through the drywall then the pipe directly through the block, this way you don't have to cut such a big hole in the block.
     
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  6. StickPick73

    StickPick73
    Member 2.
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    Sep 30, 2015
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    Loc:
    Eau Claire, WI
    This is kind of how I handled the same dilemma. My thimble was two pieces that twist together. I took the rivets out of the square plate on one of the pieces, twisted this into the thimble/plate of the other piece and used that in the interior to clear the combustibles - it went a couple inches into the hole in the concrete. I caulked the seam in the concrete hole where the round thimble met the concrete (high temp caulk). The remainder of the hole in the slab is just bare concrete - I used the plate I took off the thimble for the outside wall, that way the holes in the plates line up nicely for the stove pipe. Worked like a charm!
     

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