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Thread: Stack temp

  1. #1
    Join Date
    Mar 2009
    Location
    New Durham,NH
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    Default Stack temp

    I did a test run on my new to me 2X6 the stove pipe ran 300F to 350F the feed door was over 800F is that what I should be running??

  2. #2
    Join Date
    Jan 2009
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    Ayer's Cliff Quebec
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    300 to 350 is a medium temp. How well was the water boiling in the pans.
    maybe 50 taps for 2011
    Finally ready to boil when I get enough sap
    I just might be crazy.( make that I know I am)
    Trees all tapped except the ones with 5 feet of snow.
    Enough rabbits to keep Elmer busy..

  3. #3
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    Jan 2004
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    Norwood, NY
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    Default

    First you should insulatle the inside of the feed door and then get the stack upi to 400 or 500.
    Maple syrup makers never die, they just evaporate.

    Kubota M-5040,Kubota B-2650,Kubota XRT 900, Sugarhouse is now a guest cottage.

  4. #4
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    Mar 2009
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    what would youuse to insulate the door?

  5. #5
    Join Date
    Jan 2009
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    Ayer's Cliff Quebec
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    Ceramic blanket. You drill studs into the door to hold the blanket and for me anyways a piece of tin to protect the blanket. Sure is nice not to have a blazing hot door faceing you
    maybe 50 taps for 2011
    Finally ready to boil when I get enough sap
    I just might be crazy.( make that I know I am)
    Trees all tapped except the ones with 5 feet of snow.
    Enough rabbits to keep Elmer busy..

  6. #6
    Join Date
    Mar 2003
    Location
    BECKLEY, WV (SUGARHOUSE DAWSON, WV)
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    6,621

    Default

    300 to 350 seems really low in stack temps. I would think you should be running 700 to 1000, but that depends on how long you boiled. Longer you boil the hotter it will get. If you only boiled for 45 minutes to an hour, it didn't have time to get stack temps up much. I run mine from 1400 to 1750 degrees with an airtight arch.
    Brandon

    CDL dealer for All of West Virginia & Virginia
    3x10 CDL Deluxe oil fired
    Kubota M7040 4x4 Tractor w/ 1153 Loader hauling sap
    2,400+ taps on 3/16 CDL natural vacuum on 9 properties
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  7. #7
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    Ayer's Cliff Quebec
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    1450 to 1700 is inside temps not the outside temp. The highest a outside temp thermometer goes is 900 degrees but the ones with the probe go rather high becasue the temp inside the stack is higher then the surface temp. I have my stack red hot most of the time near the bottom which I know is more then 400 degrees.
    maybe 50 taps for 2011
    Finally ready to boil when I get enough sap
    I just might be crazy.( make that I know I am)
    Trees all tapped except the ones with 5 feet of snow.
    Enough rabbits to keep Elmer busy..

  8. #8
    Join Date
    Jan 2009
    Location
    Altmar, NY
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    3,483

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    I think there are to scenarios going on when people are talking about their stack temps. A low stack temp might not mean you need more heat it might just mean your setup is efficient and the pans are absorbing alot of the heat leaving cooler temps exiting the stack. And yes it could also mean you just are not plain hot enough. I remember in the old days on grampa's farm Leader would come in with new pans for gramps to try and the salesman's concept was he new the arch was efficient and was shooting for a pan configuration to get the stack temps down, meaning the pans were absorbing most of the heat instead of it going up the stack which lead to a better gph. The test believe it or not was bailing twine tied around the stack and grandpa finally bought a new set of pans for that old arch when they got a setup where that string did not burn up. Grandpa went from boiling all night to being able to shutdown sooner and get some sleep before milking time the next morning. I am wondering also does anybody know what the stack temps are on the force 5? Be interesting to find out.
    2X6 deluxe Phanuef
    Adding 200 more every year
    27 years left of building a Hobby into a retirement time burner.

  9. #9
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    Jan 2005
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    The stack temps on the force 5 is 650-750 degs

  10. #10
    Join Date
    Apr 2009
    Location
    Merrill WI
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    116

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    Lapierre is advertising that the stack temps on a Force 5 are 650 degrees farenheit i do not know if this is inside or outside stack temps
    18 Years Old
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