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The Great Lakes Guardian Auto Draw-Off System

Rated 5.00 out of 5 based on 1 customer rating
(3 customer reviews)



  • Draw-off SettingTemperature at which the valve opens and/or auxiliary device activates
  • Safety Setting – Temperature at which the alarm sounds and/or auxiliary device activates
  • Efficiency Settings – Set your desired high and low stack temperature. This will tell you when to add fuel/air and help you maintain an even boil to achieve greater efficiency


  • Soft Open and CloseMinimizes syrup surging and mixing in your pan
  • Food Grade, Stainless Steel Ball Valve
  • Power Open, Power Close — Won’t get hung up like a solenoid valve
  • Bypass Switch — Allows you to open and close the valve on command


  • Adjustable, food grade, stainless steel syrup probe
  • Stainless steel stack probes are tested and paired for optimized performance
  • Audible alarm with mute switch
  • Status lights
  • Highly acclaimed illustrated instruction guide
  • 2-year limited warranty

Discounts Available

These items are available at a discounted price with the purchase of a Great Lakes Guardian Auto Draw-Off System.



  • Control box
  • Syrup probe
  • Stack probe
  • Stack connection bracket
  • Auto draw-off valve
  • Illustrated instruction guide


  • Customizable auto draw-off settings
  • Soft open and close draw-off  to prevent surging and mixing
  • Food grade, stainless steel  draw-off valve
  • Auto draw-off bypass switch to open valve at your command
  • Food grade, stainless steel syrup probe
  • Audible alarm
  • Alarm mute switch
  • Status lights
  • Accessory outlet
  • Customizable stack temperature gauge
  • Two-year limited warranty


Great Lakes Guardian Instruction Guide Compare to other models

Additional information

Weight 3.48 lbs
Dimensions 9.128 x 8.5 x 6.5 in

3 reviews for The Great Lakes Guardian Auto Draw-Off System

  1. Bob H., Puslinch, Ontario

    At first I thought the auto-drawoff would be a “nice-to-have”. In my old rig I determined draw-off point based on sampling to an optical refractometer, and I would pour off between 55 and 60 percent as it took too long to bring the syrup to 67% compared to using the finishing pan from which I also bottled. With the auto draw-off it automatically pours off at 67% consistently and I would never have been to use my old process as this rig [Silverplate Evaporator] just produces too fast, so I am very happy I purchased it and can’t imagine keeping up manually if I didn’t have it.

    So, here is what I have figured out so far:

    Boiling temp setting is 217.4 at my altitude to produce 67% syrup
    Stack temperature with blower on low setting is between 850 and 1000 degrees F. Stack temperature with no blower is about 560F
    I put a large armful of wood in every 6 minutes, 10 minutes without the blower operating
    I am getting about 20 litres (5 US gallons) syrup in about 4 to five hours running from cold start. So far I haven’t run longer than 5 hours.
    Sap pan running at 1.5 inches and syrup pan at 2 inches.

    Video tour of sugarhouse

  2. Stumpwater Farms, Sullivan, OH

    Great Lakes Guardian
    The last run of sap was over 1500 gallons. Without the Memprotech Reverse Osmosis and the Smoky Lake auto draw off, we would have been boiling 24 hrs a day. The auto draw was taking syrup off the evaporator approximately every 15 minutes.

  3. Rated 5 out of 5

    Don Mansky, Bruce, Wisconsin

    Good morning Jim and crew. Just wanted to drop a note to let you know how much I appreciate having the Guardian working perfectly. It sure makes it more enjoyable having it working so well. It really impresses people that stop by. Can’t begin to tell you how much I appreciate all the help and work you have done for me. Hope you had a great year and continue to grow. Great success story. Should I need anything I will be calling. Thanks again.

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