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£ 34.00
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Delivery Information

Delivery of this item to Mainland England and Wales is £4.95, parts of Scotland and Northern Ireland may be subject to a higher charge. Delivery costs will be calculated and displayed at checkout before any payment is required.

Please note if any other items in your basket are quoted with a longer delivery time, then your items will not be dispatched next day, but within the time period quoted for item with the longest delivery.

There is only one charge for delivery per order.










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  • Simplicity Louvre green finish

    More information
    £ 112.00
    Simplicity Louvre green finish

    Aluminium framed louvre with 5 toughened glass slats. Powder coated green, to be an exact match for Simplicity and Hercules greenhouses. The colour code is RAL6005 "Moss Green".

    Add louvres to your greenhouse to improve air circulation and prevent plants diseases. The louvre replaces a 24" x 18" (610mm x 457mm) piece of glass, however if you are ordering this louvre with a greenhouse, we will adapt the glass plan for you accordingly.

    It comes with a manual handle so that you have complete control of the air flow, however if you wish for this to be automatic opening according to the temperature, then team it up with the thermoforce auto-louvre opener. 

  • Simplicity Louvre plain aluminium

    More information
    £ 63.00
    Simplicity Louvre plain aluminium

     

    Made from aluminium and comes complete with 5 toughened glass slats. 

    Add louvres to your greenhouse to improve air circulation and prevent plants diseases. The louvre replaces a 24" x 18" (610mmx457mm) piece of glass, however if you are ordering this louvre with a greenhouse, we will adapt the glass plan for you accordingly.

    It comes with a manual handle so that you have complete control of the air flow, however if you wish for this to be automatic opening according to the temperature, then team it up with the thermoforce auto-louvre opener. 

     

     

  • Bayliss MK7 Auto opener for a vent

    More information
    £ 39.00
    Bayliss MK7 Auto opener for a vent

    Designed for aluminium or timber framed vents measuring up to 60cm square (2ft square) lifting  a load of up to 6kg (14lbs).

     

    Provides a maximum opening distance of 12 inches (30cm) and can be set to start opening at approx. 55F (12º). Supplied with full fixing kit and instructions. The standard Mk 7 autovent is supplied in a satin anodised finish.

  • Bayliss XL Opener

    More information
    £ 33.00
    Bayliss XL Opener
    A "clip-on" model lifting a load of up to 5.5kg (12lbs) giving a maximum opening of approximately 12". The unit measures 11" in length and is supplied in satin anodised finish only.

    Greenhouse autovents are an effective way to ensure that the temperature in your greenhouse is maintained at an appropriate level - whatever the weather.

    Take away the guess work and manual greenhouse ventilation - with automatic vent openers your greenhouse will be accurately vented 24 hours a day.

    Bayliss greenhouse autovents are well known for their excellent design, quality and reliability. 

    Guaranteed for 2 years.

Quantity required
Thermofor

These amazing devices are made in our own workshop in Staffordshire

Opens your greenhouse roof vent automatically as the greenhouse heats up

Provides ventilation to plants when they need it most

No electricity required - powered by heat expansion alone!

Easy to fit - adaptable to any aluminium or wooden greenhouse On most aluminium greenhouses, it simply clamps on.

 

Fitting an auto opener can help you regulate the temperature in your greenhouse and maximises the potential of the roof vents. Controlled by heat alone they do not take batteries or need an electricity supply.

The unit can be adjusted to change the operating temperature to suit.

Guaranteed for two years.
Trade enquiries also welcome from all around the world.


 

Q. Do you have fitting instructions on-line for the Classic auto vent opener, please? (I can't find mine!)

A. We have a great technical help section on our web-site (http://www.greenhousepeople.co.uk/technical_help). If the instructions for what you require do not appear then we always keep spares at our Head-Quarters to e-mail or post to you. Don't forget our technical help team who are available to e-mail on technical.


Q. Are replacement cylinders available for the Thermofor roof auto vents?

A. Replacement cylinders can be order from us. Search for product ID 19597


Q. Will this item fit my old Eden greenhouse?

A. Hello, it should do yes. The classic openers are the most universal ones as they just clamp on to the frames.


Q. Can your auto openers be used on any greenhouse, specifically Halls? Thanks

A. Hello, yes the product id: 51 should fit on a Halls greenhouse.


Q. Hi, Can these be fitted on polycarb greenhouses please and can they be fitted on a pre existing greenhouse or must they go in when it’s built? Many thanks

A. Hello, yes they should work on polycarbonate or glass greenhouses.


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100 reviews of Thermofor Classic auto opener for greenhouse vent
Average rating: (4.8)

22/05/2024
by Sue McAllister

Excellent product, works perfectly. Really good company to deal with, having now bought not only our greenhouse, but all accessories through them. From ordering, to delivery, spot on.


12/05/2024
by Barry Hart

Bought this for a recently acquired second hand greenhouse as we have two of these on our original greenhouse. Now 8 years old and still working fine. Recommended.


08/05/2024
by Edward Duffy

The Rolls Royce of window openers. Nice product


02/05/2024
by Simon Briscoe

Works extremely well, comprehensive instructions. Purchased and fitted a second item for a neighbour


29/04/2024
by Michael Currie

Fits easily and works well. Full marks on product selection. I would recommend this.

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File Type: PDF

Classic Autovent - Click here to view

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File Type: PDF

Classic Autovent Video Download - Click here to view

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Delivery of this item to Mainland England and Wales is £4.95, parts of Scotland and Northern Ireland may be subject to a higher charge. Delivery costs will be calculated and displayed at checkout before any payment is required.

Please note if any other items in your basket are quoted with a longer delivery time, then your items will not be dispatched next day, but within the time period quoted for item with the longest delivery.

There is only one charge for delivery per order.










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