Automatic Greenhouse Window Opener - Solar Heat Sensitive (Two Springs, Lifts 15.4 Lbs)

The automatic greenhouse vent opener is made of high-quality aluminum and stainless steel materials, ensuring its durability. Powered by solar energy, it requires no electricity and incurs no operating costs, making it an environmentally friendly solution. This automatic window opener helps maintain the optimal growing temperature in your greenhouse by automatically opening or closing the vents as the temperature rises or falls, preventing overheating.

The double-spring design of this vent opener is stronger and better equipped to withstand windy conditions, making it suitable for use in mountainous areas. The opener can lift up to 15.4 lbs (7 kg), suitable for most greenhouse windows and vents. Easy installation is facilitated by the included fitting accessory pack and detailed manual.

The start-open temperature can be adjusted from 15°C to 23°C (59°F to 73.4°F) by rotating the cylinder clockwise to lower the open temperature or counterclockwise to increase it. When the temperature reaches 35°C (95°F) or above, the window will fully open. The maximum open distance, from the window sill to the bottom rail, is about 45 cm (18").

Regular maintenance is recommended to ensure the smooth operation of the vent opener. All moving parts should be lubricated after installation, and occasional lubrication is advised. When the window is not in use, such as during the winter, the cylinder should be removed from the opener to prevent accidental opening due to warm weather. The piston rod should be lubricated and checked to ensure it can work smoothly after long periods of inactivity. The vent opener should be stored in a cool, dry place.

The Automatic Single Spring Vent Openers are available in both silver aluminum and black stainless steel finishes. The Automatic Double Spring Vent Openers are also available in these two color options. Additionally, a Heavy Duty Automatic Vent Opener with a lift capacity of 132 lbs (60 kg) is offered.

Customers have provided mixed reviews, with the Automatic Double Spring Silver Aluminum Vent Opener receiving an average rating of 4.1 out of 5 stars based on 272 reviews, while the 132 Lbs Heavy Duty Automatic Vent Opener has a rating of 3.4 out of 5 stars based on 21 reviews.

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