Automatic Louvre Vent Opener : 26 results priced between £10.00 and £75.00

* Precision made in UK. * Black finish (Double sprung).

Heavy-duty construction. One of the strongest greenhouses money can buy. Built in concealed rainwater gutters, down pipes included. Residential style lever operated door latch and key lockable mortice bolt. Two double sided roof vents as standard. 9ft 1ins wide with a choice of lengths. Choice of natural or green finishes. Optional elegant finials and ridge cresting available only on green models. Generous sized hinged door. Silicon sealed glass for strength and safety. Optional easy assembly...

Growing area: 9.9 square metres (106.56 square feet). Door opening width: 590mm ( 23.22 inches). Number of roof vents: 2 opening roof vents. Internal height to ridge: 2.40 metres (7ft 11ins). Internal height to eaves: 1.32 metres (4ft 4ins). External width: 2.57 metres (8ft 4ins). External length: 3.84 metres (12ft 7ins). Addition of base adds to the height: 128mm (5 inches).

All Vitavia greenhouse frames are constructed from anodised aluminium, ensuring clean handling and a pristine finish. Frames are available in natural silver colour or powder coated green finish. Standard gutters and vents are also key features of the Vitavia range. Supplied as kits, the frames simply bolt together using the fully illustrated Assembly Instructions. A full range of accessories is also available to ensure maximum use of the greenhouse, including galvanised steel bases...

5 Blade Louvre Window for Simplicity Greenhouses Complete with 5 blades of Toughened Glass This window is designed for any model of Simplicity Greenhouse except the Min Lean-to, and is available in Silver or Green finish to match your greenhouse frame This replaces one of the panes of glass in your greenhouse, and measures approximately 610 x 457mm This has a handle for manual opening, a Louvrematic automatic opener can be added if required Ventilation in your greenhouse is very important to help...

Stainless steel; Black; Automatic vent opener, opens and closes with temperature change. Complete with all fixtures and fittings; Must be fixed onto an existing manual vent. Suits all polycarbonate greenhouses from Argos. EAN/MPN/UPC/ISBN: 7290010027941.

The louvre vent now fits as standard to the left hand end. A right hand conversion kit is available for £14

The Eden Monarch greenhouse has NO door threshold - ideal for wheelchair and wheelbarrow access. Double hinged and lockable wide and high door that can be opened from inside and out. Additional side and roof bracing for added strength. Available in both mill finish and green polyester powder paint finish. Can be glazed with horticultural glass, polycarbonate or full length safety glass. Integral base for ease of installation. 4 roof vents on the 10ft x 12ft model. 6 roof vents on the 10ft...

4ft extension available for all lengths. Easy access, wide opening, hinged stable type double doors as standard. Glass is silicone sealed for extra strength and safety. 4 Double roof vents. Area of 18.05m2. Optional 120mm alloy base plinth. 12 year frame guarantee covering both workmanship and material. Easy to assemble. Clearly illustrated instructions supplied. High-quality aluminium framework for long life without maintenance. Range of options available. Gutter ends and downpipes.

Save an extra 10% when you order before 11PM Thursday March 21st , making one Parasene Parasene Jempvent Automatic Window Vent Opener only £22.77

Nison Universal Automatic Premium Vent Opener

Opens vent window automatically at warm temperature for air. Circulation and heat relief. Closes when temperature cools.

Nison Greenhouse Universal Automatic Vent Opener - Deluxe Automatic Vent Opener The temperature controlled sensor cylinders allow vents to be automatically opened and closed enabling sufficient airflow to help optimise ideal growing conditions throughout the day. - No batteries or power required - Made from rust-resistant stainless steel - Easy to install, replaces standard vent opener Fits most aluminium walk-in greenhouses Greenhouse Universal Automatic Vent Opener - Deluxe

Jemp Vent Automatic Greenhouse Window Opener fits most greenhouse windows and prevents damage to plants in summer due to lack of ventilation. The Jemp Vent Automatic Greenhouse Window Opener requires no batteries or wiring. Expansion of liquids in the sealed unit results in the automatic opening and closing of the window. Simply to install. No wiring required. Manufacturers guarantee. RRP 29.99

Overview The Parasene Jempvent is perfect for opening a vent within your greenhouse. As it uses solar power, this is a cost effective, environmentally friendly device perfect for letting air into your greenhouse. With a lift of up to 7kg and with adjustable controls, this parasene jempvent is ideal for regulating the airflow around your greenhouse! Features solar power adjustable controls cost effective enviromentally friendly lift of up to 7kg

The Parasene Jempvent Automatic Window Vent Opener lifts the vent lid up when temperature crosses a certain limit.

Easy to fit - Clamp or screw fitting. Lifts windows weighing up to 7kg. Powered by solar energy - Costs nothing to run once installed. Adjustable temperature control. Complete with instructions.

Easy to Fit - Simply remove the existing window stays and attach the fittings into the pre-drilled holes on the vent framework with the screws supplied.

Product Description Bayliss have been making automatic vent opening systems for over 30 years and the vents that they now manufacture are a product of this experience. This product is used to convert a manual roof vent to an automatic roof vent. Ideal for when you are out at work or away on holiday as ventilation is provided automatically via a solar powered wax cylinder. The key to the action of a Bayliss autovent is the mineral wax which it contains. When the wax gets hot, it expands and opens...

Nison Greenhouse Universal Automatic Vent Opener - Standard Automatic Vent Opener The temperature controlled sensor cylinders allow vents to be automatically opened and closed enabling sufficient airflow to help optimise ideal growing conditions throughout the day. - No batteries or power required - Made from rust-resistant stainless steel - Easy to install, replaces standard vent opener Fits most aluminium walk-in greenhouses Greenhouse Universal Automatic Vent Opener - Standard

This opener is the latest in a line of Thermofor vent openers which is suitable for most aluminum and timber greenhouse roof vents. This model is an attractive cost effective unit with a unique opening action, ensuring smooth twist free operation. The cylinder is mounted within the bracket to eliminate projection into the greenhouse. It is finished in a durable polyester powder coating and is corrosion resistant throughout. The temperature at which the unit commences opening is adjustable between...

The Polycarbonate Greenhouse provides over 90% of light transmission to your plants and seedlings. 5 Year Manufacturers Warranty. The Perspex is virtually unbreakable. The clear ‘glass like’ polycarbonate panels are much stronger than glass. Polycarbonate blocks out around 99.9% of harmful solar UV. UV protected and both durable and weather resistant. Easy to assemble with easy to read instructions. Comprehensive self-assembly instructions. A Vent is fitted as standard. The Polycarbonate...

This unit, designed for automatic louvre control, fits within the frame size of the louvre allowing the louvre to be positioned virtually anywhere in the greenhouse, including just under the eaves. The release catch allows manual opening and closing of the louvre irrespective of greenhouse temperature. It has an attractive black powder coated body and is corrosion resistant throughout. Opening temperature range adjustable between 15° and 25°C (59° and 77°F).

This vent replaces an entire 2' x 2' (610mm x 610mm) end sheet of glass, giving a very large ventilating area. The automatic unit opens and closes automatically as the temperature rises and falls. Up to two units can be fitted per cold frame.

Built in gutters with integral downpipes included. Double sliding doors with door lock. Low level door threshold for ease of entry. 4mm Toughened safety glass throughout. Roof vent numbers depend on length. Automatic roof vent openers included for each vent. Unique glazing capping and stainless steel fixings.

Automatic attachment for a Louvre vent, fits most louvres. Its fully adjustable to open over a range of temperatures.