Bayliss Greenhouse Autovent XL

The Bayliss greenhouse autovent XL is an automatic greenhouse vent opener in anodised aluminium. It clamps onto most aluminium greenhouse vents without drilling, can also go on timber framed vents, and starts opening from 13 to 18C.

Key features

• Anodised aluminium construction
• Clamps onto most aluminium greenhouse vents, no drilling needed
• Can also be used on timber framed vents
• Fits a window weighing 12.5kg (28lbs), exerting a load of 6.5kg (14lbs)
• Temperature adjustable, starts opening from 13 to 18C (55 to 65F)

Specifications

Why fit an automatic vent opener?

It opens the roof window as the greenhouse warms and closes it as it cools, so plants are not cooked on a sunny day while you are out. The XL greenhouse window opener handles windows up to 12.5kg.

How to use

1. Check the window weight.
2. Clamp it to the vent.
3. Set the opening temperature.
4. Test it on a warm day.

FAQs

Does the Bayliss autovent need drilling?

No, it clamps onto most aluminium greenhouse vents.

Will the greenhouse vent opener fit a wooden greenhouse?

It can also be used on timber framed vents.

At what temperature does it open?

It starts opening from 13 to 18C (55 to 65F), adjustable.