Automatic Vent Opener
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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 PowerReviewsPros
- 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
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.
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.
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.
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.
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.
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.
Displaying reviews 1-6
- Sorry, no shipments to AA,AE,AK,AP,HI,PR,VI
