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Thread: Sap Preheater Pic for Eberzin

  1. #1
    Join Date
    Mar 2012
    Location
    North Central WI
    Posts
    49

    Default Sap Preheater Pic for Eberzin

    Here's a pic of my sap preheater
    Attached Images Attached Images
    2010 - 12 taps, turkey fryer, 4 quarts
    2011 - 24 taps, homemade arch from old water tank, 16"x24" flat pan, 16+ quarts
    2012 - 9 taps, 3 pints, what a season
    2013 - 60 taps, homemade oil tank arch with 2'x4' flat pan, 16"x24" finishing pan on electric range, 55 quarts
    2014 - 80 taps, homemade oil tank arch with 2'x4' flat pan, 16"x24" finishing pan on electric range, 40 quarts
    2015 - 100 taps, 15 gallons
    2016 - 115 taps, 13.5 gallons
    2017 - 120 taps, 13 gallons
    2018 - 130 taps, 11 gallons

  2. #2
    Join Date
    Mar 2005
    Location
    Albion PA
    Posts
    5,099

    Default

    Does it work well?
    Regards,
    Chris
    Casbohm Maple and Honey
    625 roadside taps + Neighbors bring some sap too!
    3x10 King, WRU, AOF and AUF
    12" SIRO Filter Press.
    2015 Ford F250 PSD sap hauler
    One Golden named Maggie, Norwegian Forest Cat named Lucy
    Too many Cub Cadets
    Ford Jubilee and several Allis WD's, and IH tractors
    1932 Ford AAB ton and a half, dump truck

    www.mapleandhoney.com

  3. #3
    Join Date
    Mar 2012
    Location
    North Central WI
    Posts
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    Default

    Quote Originally Posted by Sugarmaker View Post
    Does it work well?
    Regards,
    Chris
    Yes: 40°F sap in, 160°F sap out. I'm thinking about splicing in more length to get beyond 160°F; I like to experiment each season to up the game (efficiency) so that's probably one of the things I'll try this year.
    2010 - 12 taps, turkey fryer, 4 quarts
    2011 - 24 taps, homemade arch from old water tank, 16"x24" flat pan, 16+ quarts
    2012 - 9 taps, 3 pints, what a season
    2013 - 60 taps, homemade oil tank arch with 2'x4' flat pan, 16"x24" finishing pan on electric range, 55 quarts
    2014 - 80 taps, homemade oil tank arch with 2'x4' flat pan, 16"x24" finishing pan on electric range, 40 quarts
    2015 - 100 taps, 15 gallons
    2016 - 115 taps, 13.5 gallons
    2017 - 120 taps, 13 gallons
    2018 - 130 taps, 11 gallons

  4. #4
    Join Date
    Jan 2017
    Location
    Quaker Hill, CT
    Posts
    328

    Default

    Try wrapping the preheater in insulation or some sheet metal. It will gain you a fair bit more heat without need more tubing.
    Attached Images Attached Images
    2017 25 taps on buckets got me hooked 1 gallon of sweet
    2018 51 taps on 3/16 tubing/ DIY oil tank evaporator 8.5gallons finished
    2019 60 taps 7 gallons finished ended season short
    2020 New 2x4 divided pan ready to get away from the headache that is steam table pans
    2021 off year due to pandemic and projects
    2022 back at it

  5. #5
    Join Date
    Mar 2012
    Location
    North Central WI
    Posts
    49

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    [QUOTE=Cjadamec;364215]Try wrapping the preheater in insulation or some sheet metal. It will gain you a fair bit more heat without need more tubing.[/QUOTE

    I wrap the preheater with aluminum flashing; I just rough assembled the parts together yesterday to snap a pic for Eberzin, I probably won't start boiling here for another 5+ weeks. What is the outcoming sap temperature on your preheater?
    2010 - 12 taps, turkey fryer, 4 quarts
    2011 - 24 taps, homemade arch from old water tank, 16"x24" flat pan, 16+ quarts
    2012 - 9 taps, 3 pints, what a season
    2013 - 60 taps, homemade oil tank arch with 2'x4' flat pan, 16"x24" finishing pan on electric range, 55 quarts
    2014 - 80 taps, homemade oil tank arch with 2'x4' flat pan, 16"x24" finishing pan on electric range, 40 quarts
    2015 - 100 taps, 15 gallons
    2016 - 115 taps, 13.5 gallons
    2017 - 120 taps, 13 gallons
    2018 - 130 taps, 11 gallons

  6. #6
    Join Date
    Jan 2017
    Location
    Quaker Hill, CT
    Posts
    328

    Default

    As long as I have the pump throttled the sap coming out is too hot to touch. When things are going full force it's warm enough not to kill the boil. Never really took the time to measure output temp. Figured as long as the pans stay boiling when there is a stream of water being pumped in that was hot enough.

    I have about 35 feet of 3/8 copper tubing wrapped around the stack. I used a leftover piece of ceramic wool and covered that in aluminum tape. I make sure to flush it with clean water at the end of the boil and take the plastic valves off so it can drain and dry out.
    Last edited by Cjadamec; 02-17-2019 at 11:14 AM.
    2017 25 taps on buckets got me hooked 1 gallon of sweet
    2018 51 taps on 3/16 tubing/ DIY oil tank evaporator 8.5gallons finished
    2019 60 taps 7 gallons finished ended season short
    2020 New 2x4 divided pan ready to get away from the headache that is steam table pans
    2021 off year due to pandemic and projects
    2022 back at it

  7. #7
    Join Date
    Mar 2017
    Location
    Nassau, NY
    Posts
    38

    Default

    Thanks for the pics

  8. #8
    Join Date
    Feb 2017
    Location
    Morrow County Ohio
    Posts
    54

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    I know this is an old thread, but I tried this sort of thing today. I used 10' of 5/16 copper around the stove pipe to feed directly from my ro bucket. Temp rise was minimal, so I put a ceramic blanket on it. Sap temp went up too hot to hold my hand under witch was great until I noticed the stove pipe was cherry red.
    Because of the layout of my setup the stove pipe runs horizontal 4' to the wall exit, so I am thinking of going with 3/8 or 1/2 inch tubing and maybe 25' to give more time for heat transfer. also thinking of running it back and forth across the top rather than around so I can just lift it off when the ro is not running.
    Any chance this will work? Or am I wasting my time?

    Thanks David
    Leader half pint Supreme
    RO Bucket-RB15

  9. #9
    Join Date
    Jan 2017
    Location
    Quaker Hill, CT
    Posts
    328

    Default

    You could always just get more 5/16 tubing and just add to the 10 you have already. 10 feet of tubing isn't that long of a run.

    You could also try a price of sheet metal over the coil you have rather than insulation. That will trap heat on the coil but still allow the stove pipe to radiate heat.

    You can try laying the coil ontop of the pipe if you are able to make those bends without putting a kink in the tubing. Thin copper tubing is difficult to bend into a tight radius without kinking it.

    My rig also tends to get a little glowy at times but it's not due to the preheater on the stack.
    Attached Images Attached Images
    2017 25 taps on buckets got me hooked 1 gallon of sweet
    2018 51 taps on 3/16 tubing/ DIY oil tank evaporator 8.5gallons finished
    2019 60 taps 7 gallons finished ended season short
    2020 New 2x4 divided pan ready to get away from the headache that is steam table pans
    2021 off year due to pandemic and projects
    2022 back at it

  10. #10
    Join Date
    Feb 2017
    Location
    Morrow County Ohio
    Posts
    54

    Default

    That is scary hot. I will go more tubing for sure just not sure of size yet. Biggest issue is keeping it tight to the pipe but I will experiment with possibly cutting the ceramic into strips to leave some space for heat to radiate out, and some wire to hold the tubing tight to the pipe. I guess too many hours watching sap boil makes
    the mind start thinking of different things to try.

    David
    Leader half pint Supreme
    RO Bucket-RB15

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