Automatic Vent Opener

Automatic Vent Opener

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Automatic Vent Opener
Item # 11-229
$69.95
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Heat-Sensing Greenhouse Vent Opener Works Without Electricity

This device opens and closes your greenhouse vent panels for reliable climate control even when you’re away! No electrical power is required. Fluid-filled cylinders expand in warm temperatures. You can raise or lower the temperature setting with a simple twist of the cylinder.

  • Steel with paraffin in the vent opener cylinder
  • Rated to lift up to 15 lbs.
  • Depending upon installation, this vent opener will open a vent 12-18"
  • The opening temperature can be adjusted from approx. 65° to 80° F
  • 12" L; weighs 1/2 lb.

REVIEW SNAPSHOT®

by PowerReviews
Automatic Vent Opener
 
4.3

(based on 6 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Extends season (5)
  • Solid construction (5)

Cons

    Best Uses

        • Reviewer Profile:
        • Do-it-yourself (3)

      Reviewed by 6 customers

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      Displaying reviews 1-6

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      (1 of 1 customers found this review helpful)

       
      4.0

      no more fried starts

      By Eric

      from Northampton, MA

      About Me Professional

      Verified Buyer

      Pros

      • Extends Season
      • Solid Construction

      Cons

        Best Uses

          Comments about Automatic Vent Opener:

          -As other people said the instructions are confusing, but once it is installed it's great. -Provides peace of mind, you KNOW that the frame is open when it's warm.

           
          5.0

          Exactly what I needed

          By Andy the Eggman

          from Bfranford, CT

          About Me Do-It-Yourself

          Verified Buyer

          Pros

          • Extends Season
          • Solid Construction

          Cons

            Best Uses

              Comments about Automatic Vent Opener:

              I bought a greenhouse from GS ten years ago and have needed replacement window openers for several years. This is a perfect replacement. I now just need to buy the thermo-piston parts for my other windows.

              (2 of 2 customers found this review helpful)

               
              4.0

              Great, but read the SMALL print!

              By Sally

              from Ellensburg, Wa

              About Me Do-It-Yourself

              Pros

              • It works
              • Mindless temp regulation
              • Solid Construction

              Cons

              • Cylinder ruined by freeze

              Best Uses

              • Chicken coops
              • Greenhouse windows

              Comments about Automatic Vent Opener:

              The cylinder must be removed in areas with cold winters, or it becomes inoperable. Unfortunately I neglected to do this, all the cylinders failed, and now I'm looking to replace them. Otherwise these are very handy on the greenhouse to regulate the temp without having to be around.

              (1 of 1 customers found this review helpful)

               
              4.0

              wow, it really works

              By little girl

              from Indpls., IN

              About Me Do-It-Yourself

              Verified Reviewer

              Pros

              • Extends Season
              • Solid Construction
              • Weather Resistant

              Cons

                Best Uses

                • Protect Garden

                Comments about Automatic Vent Opener:

                I couldn't believe that it really works. I don't know how it actually opens the lid of the cold frame but it does. The lid is a little heavy also, so I was really surprised.It's easy to use and set up.

                (4 of 4 customers found this review helpful)

                 
                4.0

                Great item

                By Bob J.

                from Rochester, NY

                About Me Handyman

                Verified Buyer

                Pros

                • Extends Season
                • Weather Resistant

                Cons

                  Best Uses

                    Comments about Automatic Vent Opener:

                    We use the lifter on a home made cold frame and it works great.

                    (4 of 4 customers found this review helpful)

                     
                    5.0

                    Amazing!

                    By Silver Fox

                    from Springfield, Missouri

                    About Me Novice

                    Verified Buyer

                    Pros

                    • Extends Season
                    • Solid Construction

                    Cons

                      Best Uses

                        Comments about Automatic Vent Opener:

                        I don't understand how it works, but IT WORKS!!
                        I'm new to hobby greenhousing but the automatic vent opener gives me a good sense of security that I won't cook my plants.

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