Compatible with Palram - Canopia Harmony, Mythos, Hybrid, Octave, Essence & Balance Series

Reliable, quality built anodised aluminium automatic window opener for greenhouses.

Clamps onto most aluminium greenhouse vents – no need for drilling.

Can also be used for timber framed vents.

Will fit a window weighing 12.5kgs (28lbs), exerting a load of 6.5kgs (14lbs).

It is temperature adjustable and can be set to start opening the window from 13 – 18°C (55 -65 °F)

15kg Load Capacity – Effectively supports greenhouse windows up to 15kg for reliable ventilation

Heavy-Duty Twin Springs – Designed for durability and strength, making it perfect for long-term greenhouse use

Temperature changes in your greenhouse will trigger the opening device, the working conditions are - Start to open - 15°c - 23°c (59f-73f) - Fully open temperature 35° (19f) or above - Fully open distance 45cm (18") - Maximum opening weight 15 kg

Can be clipped or screwed onto aluminium and wooden frames * Fitting instructions included - Simple to fit - Can be adjusted to different temperatures

Heavy-Duty Twin Springs – Designed for durability and strength, making it perfect for long-term greenhouse use

User-Friendly Installation – Simple setup with included instructions, suitable for gardeners of all experience levels

Upgraded Piston Design – Enhanced piston for improved performance and longevity, ensuring consistent operation

Screws for fittings included (Please ensure all are tight on fitting)* Things to remember - Please ensure your greenhouse window can be opened freely by at least 45 cm (18") We carry replacement parts for most of the items so please contact us if any problems

Side Louvre Opener

This is the opener ONLY - to fit an existing louvre

Automatically opens your fitted side louvre vent

Give your greenhouse the ventilation it needs with our automatic louvre vent opener. It uses the power of the sun to automatically open and close based on the temperature you set.

It works by using a wax cylinder with expands in the heat.

Comes complete with step by step instructions.

Fit's most standard greenhouse louvre vents.

Opens windows from 17-25 degrees celcius. Made from aluminium zinc coated steel.

Designed to fit most metal and wooden greenhouses

Electricity free using solar power to automatically open and close your greenhouse windows

Built from durable and corrosion resistant materials, annodised aluminium and recycled plastic bracketary

Hand built here in the UK using quality components and guaranteed for 2 years

Lifting force of over 6kg and has maximum opening range of 30cm

Please Note that certain greenhouses may require additional fittings when installing your autovent, Halls and Robinsons Greenhouses fittings are available from the Bayliss Website, along with our other autovent products!

Easy to install and does not need electricity as it uses the heat from the sun.

Automatically starts to open with the heat from the sun between 17°C - 25°C depending on the setup.

Made from Aluminium zinc coated steel.

Maximum opening approx 45cm depending on adjustment and load. Full instructions provided.

Has an opening force of 7kg. Maximum opening at 30°C.