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air to air outside woodstove?

Post in 'The Boiler Room - Wood Boilers and Furnaces' started by Lewisthepilgrim, Dec 12, 2013.

  1. Lewisthepilgrim

    Lewisthepilgrim Member

    Joined:
    Oct 5, 2011
    Messages:
    56
    Loc:
    East Kingston NH
    according to nfpa i can't install a woodstove in my shop. so i was thinking about building a doghouse for my woodstove outside and using an air to air heat exchanger to blow the hot air into the garage.

    anyone do this??

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  2. ewdudley

    ewdudley Minister of Fire

    Joined:
    Nov 17, 2009
    Messages:
    1,626
    Loc:
    Cayuga County NY
    I've seen one in person, it was outside out behind an attached garage in a stockaded area with a wood pile, trash cans and whatnot, looked like it was working out pretty well.

    Of course there are others that may seem a little hinky.

    woodfurnacevan.jpg
  3. mass_burner

    mass_burner Minister of Fire

    Joined:
    Sep 24, 2013
    Messages:
    955
    Loc:
    SE Mass

    there are plenty of stoves in work shops, why can't you do it?
  4. arbutus

    arbutus Burning Hunk

    Joined:
    Oct 16, 2007
    Messages:
    234
    Loc:
    Michigan UP
    I have seen two installations like this. Both were wood furnaces designed for central warm air systems.
    One was specifically made for outdoor installations, and had insulated ducting installed above ground.

    The other was a little closer to the green van pictured above, in that it was installed in an uninsulated metal shed, sat on the dirt, was immediately adjacent to an old trailer, and just had some crummy ductwork cobbled up to blow the heated air into the side of the trailer - not professional at all.

    Both installations provided adequate heat.
  5. Lewisthepilgrim

    Lewisthepilgrim Member

    Joined:
    Oct 5, 2011
    Messages:
    56
    Loc:
    East Kingston NH
    So I pulled what was on my towns website for installing wood burning stoves.

    "The governing building codes in East Kingston are those of the 2003 International Code Council and the NFPA Life Safety Code."

    IIRC there are no open flames (wood stoves) allowed in workshops/garages. ( I have a 1 car detached garage with attached shop in the back)

    Can anyone shed some light on this subject? (BTW all of my flammables are stored elsewhere and I rarely have a car in there)

    BTW that Van is hilarious
    Last edited: Dec 12, 2013

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