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Thread: Would a small industrial exhaust fan work?

  1. #1
    Join Date
    Feb 2017
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    Blue Hill, Maine
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    Default Would a small industrial exhaust fan work?

    When I built my sugar shack I never put a steam vent on the roof. The steam was manageable with my homemade arch and open shack( no door and a window in the back). Now I have a wf mason arch and I want a door this season. It gets old being cold that long. My solution is to put one of these in the window. Good or bad idea?51iSjOydlhL._AC_SY400_.jpg
    Last edited by BlueMaple; 11-10-2019 at 09:33 PM.
    2016- 7 taps w/ cement block arch
    2017- 41 taps w/ homemade oil barrel arch with a2x3 pan in a 8x8 shack
    2020- Got a 2x3 wfmason arch

  2. #2
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    Mar 2017
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    Vermont
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    You would be better off installing it at the peak of your roof. Otherwise steam will settle down to the window.
    2016- 50 buckets. Made 4 gallons
    2017- 100 buckets, 50 taps on 3/4 mainline and 3/16th tubing + shurflo vacuum. Made 30 gallons.
    2018- 1000 taps on 3/16 + vacuum, 60 buckets - made 378 gallons of syrup.
    2019- 1713 taps on 3/16 + vacuum, NO buckets. Made 500 gallons.

  3. #3
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    Feb 2017
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    Blue Hill, Maine
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    I can do that!
    2016- 7 taps w/ cement block arch
    2017- 41 taps w/ homemade oil barrel arch with a2x3 pan in a 8x8 shack
    2020- Got a 2x3 wfmason arch

  4. #4
    Join Date
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    What size is your WF Mason? When you put that vent near the peak, you may be better if the fan on that is either variable speed or multi speed. That way you can adjust as needed depending on the steam you need to move vs. the warmth you want to keep in the shack.
    Dave Klish about 1320 taps in '15, doing fewer each year, about 450 planned for 2020 (and after?)
    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
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.cnymaple.com

  5. #5
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    UVM Proctor Maple Research Center, Underhill Ctr, VT
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    Might work well, at least for a while. Depends upon how much heat and steam it gets. Most of these small fans have a thermal cut-off switch, which shuts it off when it gets too hot. Over time the steam might get to it and short it out, so make it simple to take down and replace. Then again...it might just run for many years.
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    Timothy.Perkins@uvm.edu

  6. #6
    Join Date
    Mar 2018
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    Redgranite
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    I'm just a newb but as a carpenter I wouldn't put that in the roof, the peak of one of the gables maybe, but not the roof. Seems like it would be an issue keeping the shack dry the rest of the year, unless you pull it and seal the roof? Again, I'm new to this and on this forum to learn, planning on moving inside this coming Spring - earliest next Spring -latest.
    Last two years late nights outside bundled into my carhartts, is indeed getting old fast (as am I) haha

  7. #7
    Join Date
    Jan 2006
    Location
    Oneida NY
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    I also would not mount it in the roof, put it near the peak in the gable end, or if no gable, find the highest point it could go on a wall.
    Dave Klish about 1320 taps in '15, doing fewer each year, about 450 planned for 2020 (and after?)
    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
    6.32 KW solar system, 1.48KW is battery backed up, all net metered
    http://s1041.photobucket.com/albums/...anssugarhouse/
    website: www.cnymaple.com

  8. #8
    Join Date
    Feb 2017
    Location
    Blue Hill, Maine
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    I have a 2x3 hobby arch. Variable speed switch is a good idea. And installing it at the top of the gable end is how I understood the recommendation but thank you for clarifying it.
    2016- 7 taps w/ cement block arch
    2017- 41 taps w/ homemade oil barrel arch with a2x3 pan in a 8x8 shack
    2020- Got a 2x3 wfmason arch

  9. #9
    Join Date
    Apr 2013
    Location
    Derby, Vermont
    Posts
    388

    Default

    i think your idea will work fine. i used a regular box fan to evacuate steam in my sugar house for 5 years! only thing i did to help it's longevity was to not start it until the steam had a chance to thaw it out each time. only time i tried to start it before i lit the evaporator it **** out on me cuz it was frozen still.
    Awfully thankful for an understanding wife!

    “The only place success comes before work is in the dictionary.”
    - Vincent “Vince” Lombardi

    Good luck to all!

  10. #10
    Join Date
    Apr 2013
    Location
    Speyside, Canada
    Posts
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    Default

    On a similar idea, I was thinking of putting one (or two) of these in the roof instead of a cupola.

    https://www.etrailer.com/RV-Vents-an.../FV801250.html

    Would that be a better idea than the gable fan? It should be able to be sealed better.
    2015 - 8 buckets, 332L sap, 8.5L syrup - Barrel evaporator, 2 steam pans
    2016 - 8 buckets, 432L sap
    2017 - 10 bags, 470L sap, 9L syrup
    2018 - 20 bags, 1050L sap, 17.6L syrup

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