Solar powered roof vents allow you to take the guesswork out of ventilating your greenhouse.
Bayliss solar powered vent opener.
Upgrades are available with the orchid wax for hot house environments and the hydraulicheck opener for high wind areas up to 90 mph gusts.
Our bayliss standard triple spring solar powered roof vent opener is designed for either aluminum or timber framed hinged vents measuring up to approximately 2 ft square 60cm square and can be used in most greenhouses.
Opening temperature is adjustable ranges shown below.
Adequate ventilation is an important aspect of greenhouse growing and this solar powered automatic greenhouse vent opener ensures accurate continuous venting all day and night.
The autovent uses energy from the sun and surrounding air the hotter the temperature the wider the vent will open.
Maximum opening of 12 is reached at approximately 20 to 30 f above opening temperature.
As the air in the greenhouse heats up it also heats the powertube in the vent opener.
Lysander works blenheim road airfield industrial estate ashbourne derbyshire de6 1ha united kingdom.
These autovents automatically opens and closes hinged vents.
Opening and closing our greenhouse roof vents consistently as the temperature changes.
Bayliss autovents have been producing automatic greenhouse vent openers in england since 1964 and have a reputation for quality and reliability.
These bayliss mk7 openers have three heavy duty springs which gives the opener superior closing power making it ideal for side wall vents and roof vents in windy areas.
Automatic greenhouse vent openers by bayliss autovents are widely thought to be the best on the market suitable for both wooden and aluminum greenhouses.
Bayliss solar powered vent opener the standard bayliss opener has an adjustable operating temperature between 55 75f 13 18c.
Bayliss solar powered vent opener heat activated wax expands and contracts depending on your internal greenhouse temperature description.
This automatic greenhouse vent opener is well engineered made from quality materials and actually works.
This is a pack of two bayliss mk 7 autovents.
Upgrades are available with the orchid wax for hot house environments and the hydraulicheck opener for high wind areas up to 90 mph gusts.
The bayliss mk7 autovent is supplied in a satin anodised finish with all the fixings and instructions.
A threaded adjuster bolt can set the bayliss to start opening the vent at approximately 55 degrees fahrenheit.
This vent opener uses a very simple principal special waxes have an expansion rate of about 18 when heated by the sun.
