An autolouvre will allow the greenhouse to reach a set temperature, after which it will cause the louvre to open.

The automatic louvre will sense the effects of any chilling air from outside and will automatically react to this and adjust the window accordingly, giving added protection to your plants.

Technical Information

Opening temperature range adjustable between 15C and 25C (59F and 77f).

If you wish to open or close the louvre manually remove the top half of the plastic catch and carefully remove the link arm from the pivot pin. Providing you do not move the unit or the adjusting knob the unit will operate at your chosen temperature when reconnected.


Provided the autovent has been correctly fitted in accordance with the instructions, it carries a one year guarantee from date of purchase. Should it fail to operate during this period please return either the complete unit or defective part to the address on the instructions.


Brand: Halls
Type: Ventilation

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Delivery Information

Fast Free UK Delivery on orders over £60.00.*
Smaller orders under £60.00 are subject to a £2.95 delivery charge. Delivery will typically be made within 2 - 3 working days but may be extended during peak times.

We Can Offer Next Day Delivery for £7.95*
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

*Extra charges or restrictions will apply to certain UK postcodes. These include parts of Scotland, The Highlands, Northern Ireland and offshore Isles. Please note Next Day delivery is not available to these locations. Please click here for a full list of postcode exclusions and contact us today for a personalised quote. 

Customer Reviews

Overall Rating 4.9 / 5 Based On 4 Reviews

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

Auto louvre vent opener

Does what it says on the tin. In my opinion an essential addition to the greenhouse when used in combination with Auto. Vent openers.

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

I think such item is of good standard and quality also instructions need to be follow to the letter otherwise it is easy to make mistake and therefore damage but neverthe less I am happy.

Hi I have not fitted yet but I will let you know when I will do it thank you.

Delivery 5 / 5
Quality 5 / 5
Price 5 / 5

Excellent Auto Louvre

The Halls louvre and louvre auto openers make a perfect combination. Fitting the auto louvre is straightforward and takes about 20 minutes at the most.

Delivery 5 / 5
Quality 5 / 5
Price 4 / 5

Excellent product but needs some DIY kit

I have two of these auto louvre openers installed and they work very well indeed. The only down side is that some drilling is required. However, if you have a drill and the correct size drill bit plus a little DIY ability and follow the instructions carefully there should be no problem.

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