Great Lakes Guardian Auto Draw-Off System Components
Great Lakes Guardian Auto Draw-Off System Components Features of Great Lakes Guardian Great Lakes Guardian Auto Draw-off System

The Great Lakes Guardian Auto Draw-Off System

(3 customer reviews)


Below are all the items included standard with the Great Lakes Guardian Auto Draw-Off System. Scroll down to customize your valve size and select any other optional add-ons! Then click “Add to Cart” at the bottom of this page when you are ready!



  • 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 temperature probe
  • Stainless steel stack temperature probe
  • Audible alarm with mute switch
  • Status lights
  • Highly acclaimed illustrated instruction guide
  • 2-year limited warranty

The Automated Draw-Off Valve Can Connect to Virtually Any Evaporator Pan:

What Type Of Draw-Off Port Does Your Evaporator Have? Ways to Connect Your Automated Valve
3/4″ NPT Female

1″ NPT Female

1 inch NPT Draw Off

1″ NPT Male

1-1/2″ Sanitary Clamp Fitting


  • Mount for Smoky Lake Auto Draw-Off System

    Evaporator Mount for Auto Draw-Off System

  • Valve Assembly for Auto Draw Off System

    Auto Draw-Off Valve Assembly

Great Lakes Guardian Instruction Guide Compare to other models

Additional information

Weight 3.48 lbs
Dimensions 9.128 × 8.5 × 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. 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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