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Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs For Sale

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If you’re looking for a greenhouses reviews, this Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs is the best cheapest price on the web we have searched. Many good reviews already proving the quality of this product. The Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs is equipped with a large number of features that makes it great product. The most sold product is not expensive and it is highly desirable, and if you want buy it now, you should not miss this opportunity because this product is the price length applications.

Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs

  • Replacement Hydraulic Cylinder only, best for Sumnacon auto vent opener.
  • Replaces worn out Piston Rod from one or more of your Vent Window Openers.
  • This special designed cylinder works as the greenhouse window openers thermostat, thus there is no need for electrical power supply
  • Our renowned hydraulic cylinders replace our small range of window openers: Optivent, Univent, Thermovent, Sesam Liberty Vent, and Ventomax, Orbesen, Gardman & B&Q vents
  • Notice: Do not use this opener anywhere the temperature will exceed 50° (122F)

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Product Code: B010DCNZZQ
Rating: 4.5/5 stars Rating
List Price: $ 26.99
You Save: $ 11.00
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Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs

Description:

Replaces worn out Piston Rod from one or more of your Vent Window Openers.
The core technology is the hydraulic cylinder that contains a plant-based wax.
This special designed cylinder containing this wax, works as the greenhouse window openers thermostat, thus there is no need for electrical power supply
You don’t need any electricity in your greenhouse; the window opener will be very environmental throughout its whole lifetime

Specifications:

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Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs

Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs Customer rating: 4.5/5 stars Rating
List Price: $ 36.99
Sale: $ 26.99

Discount: 29%
Availability: New, original packaging – In stock
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3 Comments

  • JL says:
    8 of 8 people found the following review helpful
    5.0 out of 5 stars
    Great price, quick delivery, good design., December 13, 2015
    By 
    JL

    Verified Purchase(What’s this?)
    This review is from: Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs
    Great price. Simple install on Greenhouse vent window/door, works in the temp range – Start to open at: 60.8°-77F.- Fully open temperature: about 86F. Was received a month earlier than expected from China. The arm is spring loaded and pushes open when temp goes up. Install bracket without the cylinder, then ensuring the cylinder is warmed up (full extension), install cylinder and adjust for the full open. When the cylinder cools, it closes the window with the spring tension, with the cylinder continuing to retract, as needed. Observing this item functioning, it closes when it gets dark, regardless of the temps in the 70 degree range, which is what I like about this item. Would not consider this item’s component’s construction “heavy duty” and used it on the side that receives the least amount of wind. Other more expensive vent openers are better suited for windy applications, but this cylinder works much better compared side-by-side with the other stronger designed openers. Favorite feature on this opener is ease of adjustment. The cylinder on the outside of the arm does not get in your way, at least on my 8 ft high greenhouse. This does not come with adapter brackets and hardware for universal installation like other more expensive openers but has held up for over six months of usage with no issues.
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  • rjeffb says:
    4 of 4 people found the following review helpful
    3.0 out of 5 stars
    Works, but hardly “universal”, March 12, 2016
    By 
    rjeffb

    Verified Purchase(What’s this?)
    This review is from: Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs
    “For all Palram greenhouses”? I suppose in theory that’s true, but it took nearly five hours to install on a Palram Snap and Grow.

    It does not come with the holes of the right size and the fitting attachments to mount into the Snap and Grow’s attachment channels, so you have to drill holes (or more precisely, drill the existing slots and holes out larger) and to be fortunate enough to have some extra T-screws (the screws that you used when mounting the braces on the greenhouse frame). Fortunately, I did have extras, as I installed several of the excellent Palram heavy-duty shelf sets; if you install them side-by-side, one side of each shelf can share a set of screws, leaving me with extras. That would be a star off right there: the fact that at least with the Snap and Grow, you will need special mounting hardware that does not come with the Sumnacon and which you will definitely not be finding at a hardware store.

    But the really big star off is for how cheaply made this thing is: the mounting brackets are thin pieces of galvanized tin. I didn’t think they still made anything out of tin anymore, I mean even a “tin can” has been made from steel for decades. Tin so thin and flimsy, and I kid you not, that when I tried to widen the existing holes in the plate – not even drill a completely new hole, mind you, but simply widen it a few hundredths of an inch to accommodate the T-screws that work with the Snap and Grow – instead of the drill bit drilling through the plate, the plate literally wound itself around the drill bit into a spiral. That had to be unwound, ever so slowly and carefully because of course, tin cannot just be bent and unbent or it will just break in half. I did eventually get it back into something vaguely resembling its original rectangular shape and widen the hole (slot, actually) enough to squeeze the T-screws through.

    Then on the other end, one pair of holes (out of the four sets present) that is in fact already large enough for the T-screws was underneath the swiveling attached L-bracket to which the piston cylinder screws into. Well stupid me, I figured I would screw that to the inside of the greenhouse frame last, after I had everything else set up…but the L-bracket is exactly over that set of holes, making it impossible to then tighten or even attach the nuts to the screw threads. Back down everything came, attach bottom bracket and L-bracket first (while unmounted it is possible to swing the piston cylinder out of the way) and repeat.

    Finally, the threaded hole into which that piston cylinder screws is ALSO the same cheap tin, and its threads will deform if you cross-thread it at all. Which I did…while UNSCREWING the cylinder to get at the aforementioned holes. If you had asked me before this, I would have sworn it is impossible to cross-thread something while unscrewing it!

    Well, it took almost five hours, the brackets are mangled if you were to look closely at them, and the nice black piston cylinder – the only part of this that is actually well-made – has ugly silver scratches on it where I had to use a pipe wrench to get it un-cross threaded. But I can’t give it one star, because it does in fact work…and I can’t give it two stars, because if I had to do it over again with the hindsight of all the things that can go wrong, I’d mount it in fifteen minutes.

    But three stars is the most it’ll get from me, and two of those only grudgingly.

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  • BigAl says:
    4 of 4 people found the following review helpful
    5.0 out of 5 stars
    They survived a tornado and still working., March 6, 2016
    By 
    BigAl

    Verified Purchase(What’s this?)
    This review is from: Sumnacon Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit, Lifts 15 Lbs
    Put these on our Harbor Freight 10×12 greenhouse, they work great, open when it gets warm and close when it cools off. Last week we were hit with a tornado. By the time it hit us it was down to a EF1, but it still uprooted huge live oaks that had survived several hurricanes. I was sure these would be gone, to my surprise although the greenhouse doors had been ripped off along with most of the roof panels these stayed intact and held the windows closed….I’m impressed. FYI the greenhouse only survived because I had built a interior wood frame anchored into the ground with concrete that the aluminum frame was attached to.
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