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  1. #1
    Join Date
    Sep 2008
    Location
    so so, California
    Posts
    1,867

    Default Anyone know what this is?

    It doesnt appear to be connected into the main fireplace anywhere, no holes, except that big one in the middle.

    Last edited by Marc M; 01-18-2010 at 09:04 PM.
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  2. #2
    Join Date
    Oct 2003
    Location
    Rockwall Texas
    Posts
    4,521

    Default Re: Anyone know what this is?

    Not to any crawlspace I'm guessing or you would have crawled down into it right?


  3. #3
    Join Date
    Mar 2007
    Location
    Fletcher, NC
    Posts
    28,032

    Default Re: Anyone know what this is?

    Marc,

    Where were you standing, in the attic looking down? In a basement looking down?

    Jerry Peck
    Construction/Litigation/Code Consultant - Retired
    www.AskCodeMan.com

  4. #4
    Dennis Eckmann's Avatar
    Dennis Eckmann Guest

    Default Re: Anyone know what this is?

    If I am looking at the picture right and you are looking down from the fire box then it is a ash pit they used them in coal fireplaces there are normally a clean out on the floor below I have a house that has 2 of these one on second with a cleanout on the main floor and the one on the main level has the clean out in the basement


  5. #5
    Join Date
    Sep 2008
    Location
    so so, California
    Posts
    1,867

    Default Re: Anyone know what this is?

    Oops, I should have said where I was, sorry. I was in the attic looking down at the fireplace where the it comes thru the ceiling.


  6. #6
    Bob Sullivan's Avatar
    Bob Sullivan Guest

    Default Re: Anyone know what this is?

    You may be looking at a "dummy" flue built to create some sort of aesthetic effect below the ceiling line in the structure's interior. It's not properly lined as would be a functional flue.

    In terms of thermal performance, this "hole" may be an enormorous energy leak if all that separates the conditioned space of the structure from the attice is a single wythe of brick. If that's the case, suggest plugging this "hole" with insulation.


  7. #7
    Join Date
    Sep 2008
    Location
    so so, California
    Posts
    1,867

    Default Re: Anyone know what this is?

    Yea, interresting... I thought it was an after thought or mistake.


  8. #8
    Mike Truss Guy's Avatar
    Mike Truss Guy Guest

    Default Re: Anyone know what this is?

    You guys are so informative. I was going to say it was a hole in the floor.


  9. #9
    Join Date
    Mar 2007
    Location
    Kalamazoo, MI
    Posts
    117

    Default Re: Anyone know what this is?

    Marc,
    It may also serve as a fresh-air intake into the FP??? Did you see an openings/vents on the insides of the firebox? Is that insulation that is down inside the opening? Hopefully not.

    RJDalga
    http://homeanalysts.com
    Kalamazoo, MI

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