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Thread: Stack

  1. #1
    Join Date
    Aug 2011
    Location
    Monkton, VT
    Posts
    77

    Default Stack

    Does the stack have to go straight up through the roof or can it go up 6 or so feet and then take a 45 or 90 degree outside and then up past the peak?

  2. #2
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    7,607

    Default

    It should go straight up, any bend causes an unwanted restriction. It is especially bad to go up a ways, then elbow to a horizontal, out thru the wall, then another elbow to vertical again and up, that is asking for trouble, to a slightly lesser extent, but still trouble is to go the route of vertical then elbow to a sloping upward angle, out the wall and another elbow to vertical again. By far best to exit straight up.
    Dave Klish about 1320 taps in '15, down to about 700 in '16, up to 850 for 2018?
    2012 Mahindra 36 HP 4x4/ loader/cab/heat/AC:-)
    added a gooseneck equipment trailer and F350 to tow it to haul more sap
    3x8 raised flue evaporator
    250 GPH converted to electric, RO by Ray Gingerich
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    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.daveandjoanssugarhouse.com

  3. #3
    Join Date
    Mar 2011
    Location
    Potsdam in far northern New York
    Posts
    523

    Default

    I agree. A straight stack bears it weight straight down and needs little support to stay in place. It also means that ash and dust either fly straight out or fall straight down, leaving the stack always completely clear. Bite the bullet and cut that hole.

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