The plant oil inside the piston expands and retracts with temperature fluctuations and thus pushes the window up to 45 cm.
Vitavia automatic roof vent opener.
The automatic vent opener from vitavia ensures the automatic opening and closing of your greenhouse vents with precision and without the use of electricity.
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Available from notcutts comes this vitavia automatic vent opener.
However if you go out for the day or are away for an extended period of time you might like a little extra help in making sure they are opened and closed at the correct times.
We offer fast uk delivery cheap prices and our 5 star service which is backed up by over 5000 reviews.
Anodised aluminium frames are standard on vitavia greenhouses.
Roof vents are a very effective way of maintaining heat and humidity levels in your greenhouse.
Upgrade for the greenhouse to help regulate the temperature during the summertime.
This vitavia automatic roof vent opener is filled with wax when the wax reaches a certain temperature it opens your greenhouse roof vent.
The vitavia automatic vent opener will open and close your greenhouse vents with precision therefore ensuring your greenhouse has automated aeration without the need of electricity.
Louvre windows roof vents automatic openers.
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Within the arm of the auto vent opener is a gel which expands with heat forcing the arm to extend which in turn opens the vent.
As the temperature cools the gel contracts the arm subsequently retracts and the vent closes.
Buy a vitavia automatic roof vent opener securely at gardensite for only 32 99.
Roof vents are very effective in maintaining the appropriate humidity and temperature levels in your greenhouse so this automatic opener is ideal for when you are away from home and vents can not be opened manually.
Rigid or folding shelves.
We stock autovents from bayliss and models to fit your halls elite eden palram or vitavia greenhouse.
Once the wax cools and solidifies the vent closes to keep the heat inside your greenhouse.
Simple yet very effective.
As hot air rises it needs to escape if you re not around an automatic roof vent opener will allow this to happen.