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  1. #1
    Join Date
    Feb 2008
    Location
    Iowa City, IA
    Posts
    108

    Default Identifying Double Wall Stove Pipe

    I am trying to verify that this is double wall stove pipe in the photo? I am not familiar with all the different types of stove pipe available. Without being able to see into the pipe, what is the best way to visually verify that it is double wall (e.g. the deep indent prior to the crimped end?)

    Thanks in advance!

    https://i303.photobucket.com/albums/...s/IMG_1343.jpg
    https://i303.photobucket.com/albums/...s/IMG_1353.jpg

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  2. #2
    Join Date
    Feb 2008
    Location
    Iowa City, IA
    Posts
    108

    Default Re: Identifying Double Wall Stove Pipe

    Just to follow up I was able to verify this is double wall stove pipe. As I was informed, the best way to determine that it is double wall pipe without being able to dismantle it, is by the deep indents just prior to the crimped ends.


  3. #3

    Default Re: Identifying Double Wall Stove Pipe

    Flue piping for wood burners is commonly triple wall - I'm not an expert but found this article that is full of good info about all aspects of wood stove installation. http://nasdonline.org/335/d000132/pr...of-a-wood.html
    In addition, check out the links that appear at the bottom of your post.

    Best luck with it!


    Quote Originally Posted by Andrew Kolar View Post
    I am trying to verify that this is double wall stove pipe in the photo? I am not familiar with all the different types of stove pipe available. Without being able to see into the pipe, what is the best way to visually verify that it is double wall (e.g. the deep indent prior to the crimped end?)

    Thanks in advance!

    https://i303.photobucket.com/albums/...s/IMG_1343.jpg
    https://i303.photobucket.com/albums/...s/IMG_1353.jpg


    Tim Kaiser, Nitty Gritty Inspections, LLC
    Home and small commercial inspections for Central Oregon
    http://nittygrittyinspections.com/index.html

  4. #4

    Default Re: Identifying Double Wall Stove Pipe

    Flue piping for wood burners is commonly triple wall - I'm not an expert but found this article that is full of good info about all aspects of wood stove installation. http://nasdonline.org/335/d000132/pr...of-a-wood.html
    In addition, check out the links that appear at the bottom of your post.

    Best luck with it!


    Quote Originally Posted by Andrew Kolar View Post
    I am trying to verify that this is double wall stove pipe in the photo? I am not familiar with all the different types of stove pipe available. Without being able to see into the pipe, what is the best way to visually verify that it is double wall (e.g. the deep indent prior to the crimped end?)

    Thanks in advance!

    https://i303.photobucket.com/albums/...s/IMG_1343.jpg
    https://i303.photobucket.com/albums/...s/IMG_1353.jpg


    Tim Kaiser, Nitty Gritty Inspections, LLC
    Home and small commercial inspections for Central Oregon
    http://nittygrittyinspections.com/index.html

  5. #5
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,869

    Default Re: Identifying Double Wall Stove Pipe

    It looks to me as though the stove is a gas-burning appliance rather than wood-burning. Is that correct?

    If so, it would require a b-vent, just like a furnace or water heater. Even though you already answered your own question... Yes, that is a b-vent for the reasons that you cited.

    "Bring out yer dead"
    "I'm not dead yet!"
    http://www.FullCircleInspect.com/

  6. #6
    Join Date
    Feb 2008
    Location
    Iowa City, IA
    Posts
    108

    Default Re: Identifying Double Wall Stove Pipe

    No, it is actually a wood burning stove. The chimney connector is double wall 6" stove pipe. The triple wall pipe tkaiser1 mentioned is going to be the actual chimney pipe on the exterior of the house. To reiterate, double wall stove pipe is going to have deep (1/4") indents, or in some cases visible vents. If I am not mistaken, single wall pipe typically has a ring before the joints that extends slightly outward (as opposed to the indent).


  7. #7
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,869

    Default Re: Identifying Double Wall Stove Pipe

    Quote Originally Posted by Andrew Kolar View Post
    No, it is actually a wood burning stove. The chimney connector is double wall 6" stove pipe. The triple wall pipe tkaiser1 mentioned is going to be the actual chimney pipe on the exterior of the house. To reiterate, double wall stove pipe is going to have deep (1/4") indents, or in some cases visible vents. If I am not mistaken, single wall pipe typically has a ring before the joints that extends slightly outward (as opposed to the indent).
    Andrew,

    I would certainly find the installation instructions and refer them to a qualified technician. I have never seen a b-vent on a wood-burning stove.

    "Bring out yer dead"
    "I'm not dead yet!"
    http://www.FullCircleInspect.com/

  8. #8
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,664

    Default Re: Identifying Double Wall Stove Pipe

    This is listed close clearance double walled stovepipe. The inner section is stainless steel. It typically carries a 6" clearance to combustibles whereas unlisted single walled stovepipe requires an 18" clearance to combustibles. There should be listing stickers somewhere on each section.

    Nobody has used triple walled chimney for many years. It runs too cool causing creosote formation and fires. Everything is insulated now: either solid packed or double walled air cooled with a ceramic fiber blanket on the liner to keep stack temps up.
    HTH,

    Keep the fire in the fireplace.

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