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🌿 Keep your greenhouse cool, smart, and effortless—no power needed!
The Automatic Greenhouse Side Louvre Opener by Thermoforce is a durable aluminium device that automatically regulates greenhouse ventilation by opening and closing louvre windows based on temperature changes. Compatible with most aluminium and wooden greenhouses, it requires no electricity or batteries, offering an eco-friendly, low-maintenance solution to optimize plant growing conditions.
| ASIN | B002T90TNI |
| Customer Reviews | 4.4 4.4 out of 5 stars (114) |
| Date First Available | 17 Oct. 2009 |
| Item model number | Regal Unit |
| Manufacturer | Thermoforce |
| Material type | Aluminium |
| Package Dimensions | 28.6 x 7.8 x 5.4 cm; 421.84 g |
M**G
Easy to fit, works well
As the title. Well built, simpler to fit than I expected and works well. Only thing I changed was the plastic 'pin' which connects the vent arm to the push rod - I was finding when it was 25 degrees + the plastic pin was bending and the securing cap came off which the stopped the louvres closing. Replacing the pin with a thin bolt and nut kept operation the same and overcame this problem
B**D
Reliable greenhouse louvre opener...
Purchased 2 openers...very pleased with 1st opener, had to drill out 2 rivets from existing handle, & drill a couple of small holes for new opener. Working perfectly! Couldn't fit 2nd opener as tomatoes were in the way...have to wait till autumn...lack of planning!
M**N
almost perfect
Have fitted two to a Vitavia Phoenix greenhouse - easy to fit - working very well. Only issue is that the lever falls off the pin occasionally, possibly because of some alignment issue. However, this is easy to fix with a small bolt or split pin. update Easter 2020 - still working perfectly
W**L
Poor design
Doesn't fit my greenhouse uprights
C**W
Easy to fit
Easy to fit. Only complaint is that the plastic "glass" is a bit too flimsy. I live in a very windy place so I think I might get some glass cut. Mechanism works very well. I did have to make a small adaptation for my polytunnel.
T**D
Automatic louvre opener works a treat.
Fitted this automatic louvre opener, to my Halls greenhouse louvre windows, some weeks ago and it is working well. The biggest problem was removing the old seized screws that held the original manual leaver to the actuator mechanism. I had to drill them out. Once done the fitting was easy enough and so was adjustment. I would buy this product again and from the supplier.
B**N
Great value, easy to install
This is great value for money and fairly simple to install, saves having to rush to open windows/vents as once set these are very reliable.
R**J
Excellent auto opener
Fast service & excellent, well made opener. Working well.
J**E
Put this on the window this spring.It works great already.This should help with a summer cross breeze to cool off our greenhouse.
G**R
Does not attach very well, there are much better ones avaiable.
Trustpilot
1 day ago
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