Sproutwell® Automatic Vents Openers provides a simple automated ventilation system for your greenhouse during summer, day and night.
- The wax works on contraction as well as expansion, therefore as the wax cools it contracts and pulls the roof vent shut.
- Once temperatures reach 18-20 degrees the AVO will commence opening gradually until it reaches 26 degrees where the roof vent will stay open
- By ventilating the greenhouse environment you will ensure the growth and healthy disease free plants.
- No electricity required or manual operation needed at all.
- Fully automatic heat activated greenhouse ventilation
- Suitable for all brands/standard Greenhouse
- Simple installation using the brackets/screws provided
- We highly recommend all roof vents down one side are automated especially on large greenhouses (6m+ length) to keep air flowing
- PLEASE NOTE: We advise when fitting Auto Openers to our Grange Model Greenhouses you fit Qty 2 per roof vent