What’s Included
The kit comes ready for assembly and includes:
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durable metal roof vent frame
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pre-cut polycarbonate panel
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THERMOVENT automatic window opener
Everything needed to install an automatic ventilation system in your greenhouse is included.
Fully Automatic Ventilation — No Electricity Required
The THERMOVENT opener works using thermal expansion technology.
When the temperature inside the greenhouse rises:
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the liquid inside the cylinder heats up and expands
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the piston automatically pushes the vent open
When the temperature drops:
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the liquid contracts
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the vent closes automatically
No electricity, cables, or batteries are required.
Automatic Temperature Regulation
Your greenhouse ventilates itself — even when you are not present.
The opener starts activating between +15°C and +25°C, maintaining a stable and plant-friendly climate.
High-Quality Danish Mechanism
The THERMOVENT thermal opener is manufactured in Denmark and designed for long-term reliability.
Performance specifications:
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supports vents up to 7 kg
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maximum opening height up to 45 cm
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efficiently releases hot air from the greenhouse roof
Durable Galvanized Construction
Both the vent frame and the opener housing are made from galvanized steel, ensuring excellent resistance to corrosion and humidity inside the greenhouse.
Technical Specifications
| Specification | Details |
|---|---|
| Product type | Automatic roof ventilation kit |
| Compatibility | Bernard greenhouses |
| Brand | KLASIKA |
| Vent size | 48 × 69 cm |
| Included components | Vent frame, polycarbonate panel, automatic opener |
| Opening temperature | Starts opening at +15…+25 °C |
| Maximum opening height | Up to 45 cm |
| Maximum load capacity | 7 kg |
| Automatic opener origin | Denmark |
| Package weight | 2 kg |
| Package dimensions | 15 × 102 × 62 cm |
✅ A convenient and energy-free solution for automatic ventilation and climate control in Bernard greenhouses.
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