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Thread: Heatproofing to insulate barrel evaporator

  1. #1
    Join Date
    Mar 2012
    Location
    North Grenville
    Posts
    1,488

    Default Heatproofing to insulate barrel evaporator

    Hey all, what do you use to ěnsulate your barrel evap?

    Need a roll of...something, preferably not asbestos, to finish off a section of my barrel. Any help appreciated. Thanks!
    Been tapping since 2008.
    2018 - 17 taps/7 trees...819l sap, approx 28l syrup
    2019 - 18 taps/8 trees...585l sap, 28l syrup...21:1 ratio
    2020 - 18 taps/8 trees...890.04l sap...gave away about 170l, 30l snafu'd....23l total for me from approx 690l
    2021 - 18 taps/8 trees...395l sap, 12 l syrup
    2022 - 18 taps/8 trees....7 sugars 1 red due to #2 having surgery so had the season off....582l sap, 18.5l syrup
    2023 - 18 taps/8 trees...all sugars again. 807l sap, so far approx 14l syrup

  2. #2
    Join Date
    Apr 2016
    Location
    French River Ontario
    Posts
    172

    Default

    You can check Amazon for ceramic insulation preferably 1 inch thick, its not cheap but I believe that's the most common thing used for insulating evaporator wood box.
    A masonry place that has firebrick or does pizza ovens, wood stoves etc. may also carry ceramic insulation
    Last edited by Someclown; 03-15-2022 at 07:32 PM.
    2019 - Barrel evaporator 2 steam pans 44 taps 13 Liters syrup
    2020 - Barrel evaporator 2 steam pans 51 taps 21 Liters syrup
    2021- New homemade 2x3 evaporator and flat pan 80 drop lines to buckets
    2022- (•,•)1350L naturally ROd sap 44L syrup
    2023- "\_(°•°)_/" 1100L sap 30L syrup not accurate due to natural RO
    2024 { ';' }1862L sap 52L syrup 52 drop lines to buckets

  3. #3
    Join Date
    Apr 2019
    Location
    Nashville, MI
    Posts
    942

    Default

    Check with your local maple supply store. they should have ceramic blanket. you can use 1inch or 2 inch. Then place firebrick on top of it, if you want added insulation.
    2004 - 2012 2x3 flat pan 25 to 60 taps
    2012 2x3 new divided pan w/draw off 55 taps
    2018 - didn't boil surgery - bought new evaporator
    2019 new SML 2x4 raised flue high output evap. 65 taps
    made 17 gal. syrup
    2020 - only put out 53 taps - made 16.25 ga.l syrup
    2021 - Didn't work out
    2022 - 25 taps on bags / 8 taps on 3/16's line - late start

  4. #4
    Join Date
    Mar 2012
    Location
    North Grenville
    Posts
    1,488

    Default

    Hmm in this case firebrick won't work, it's the top part of the barrel. I used nuts, bolts and very large washers to secure the previous insulation but didn't buy enough, and don't want to use more. Thanks though I will check and see if CDL has ceramic blanket :-)
    Been tapping since 2008.
    2018 - 17 taps/7 trees...819l sap, approx 28l syrup
    2019 - 18 taps/8 trees...585l sap, 28l syrup...21:1 ratio
    2020 - 18 taps/8 trees...890.04l sap...gave away about 170l, 30l snafu'd....23l total for me from approx 690l
    2021 - 18 taps/8 trees...395l sap, 12 l syrup
    2022 - 18 taps/8 trees....7 sugars 1 red due to #2 having surgery so had the season off....582l sap, 18.5l syrup
    2023 - 18 taps/8 trees...all sugars again. 807l sap, so far approx 14l syrup

  5. #5
    Join Date
    Feb 2021
    Location
    Lake of Bays, Ontario
    Posts
    13

    Default

    Uses expanded metal sheet grate or metal mesh fastened with a few bolts, washers and nuts to hold the ceramic banket in place. Nothing too thick otherwise you can't bend it to follow the rounded shape of the barrel.

  6. #6
    Join Date
    May 2020
    Location
    iowa
    Posts
    23

    Default

    Was at a big box store the other day. They didn't have ceramic blankets but had mineral wool. The temp rating is only a couple hundred degrees difference and he said at the trade shows they hold a lighter up the to the mineral wool and it doesn't ignite. I know the BTUs of a BIC aren't the same as an evaporator, but has anyone tried it? It's much cheaper and more readily available.

  7. #7
    Join Date
    Mar 2009
    Location
    milton ontario
    Posts
    134

    Default

    I use Rockwool comfortboard in my evaporator and have had no issues.

    Nick
    3x12 Grimm
    2200 on vacuum
    woodmizer LT40HD25
    6 little sap haulers
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