Ventilation for Greenhouses – Automatic window opener supplier

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  Automatic Ventilation opener – Ventilation in greenhouses

  Offered to your customers that wish a wide range of applications.
  ✓Windows weight 14 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Ventilation in greenhouses

  Offered to your customers that wish a wide range of applications.
  ✓Windows weight 14 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Ventilation in greenhouses

  Offered to your customers who simply want to open their greenhouse window without extraordinary features.
  ✓Windows weight 14 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Ventilation in greenhouses

  Offered to your customers who simply want to open their greenhouse window without extraordinary features.
  ✓Windows weight 14 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Ventilation in greenhouses

  Offered to your customers who simply want to open their greenhouse window without extraordinary features.
  ✓Windows weight 14 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Ventilation in greenhouses

  The piston rod is completely sealed off in an aluminium enclosure. This makes this window opener extremely applicable for dusty environments.
  ✓Windows weight 13 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Greenhouse ventilation(jealous window)

  Offered to your customers who want to give their plants optimal conditions with a jealous window.
  ✓Windows weight 25 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Greenhouse ventilation

  Offered to your customers who want to lift a window up to 24 kg without extraordinary properties.
  ✓Windows weight 24 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Greenhouse ventilation

  Offered to your customers who want to lift a window up to 24 kg with a built-in storm protection.
  ✓Windows weight 24 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Automatic Ventilation opener – Ventilation in greenhouses

  The most powerful window opener on the market. Handles large windows in strong wind.
  ✓Windows weight 60 kg✓3 years warranty✓None CO2✓Thermodynamics cylinder✓Sustainable

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  Standard cylinders

  Our renowned hydraulic cylinders from the small range window openers.

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  Hydraulic cylinders – THERMACT

  These special hydraulic cylinders belongs to a group of products we call Thermact.

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  Nova Air is DISCONTINUED 

  Download below fil to get info on sheet: Info sheet English (pdf)

How to ventilate your greenhouse – The 9 Best Automatic Vent Openers

Automatic vent openers are solutions to get ventilation in your greenhouse. Which can be used for windows, cold frames, louvres and sliding doors.

J. Orbesen Teknik ApS has been manufacturing automatic greenhouse vent openers for all kinds of greenhouses since 1981 i.e. more than 30 years. The core technology in the opener is the hydraulic cylinder that contains a plant-based wax. The special designed cylinder containing this wax, works as the greenhouse window openers thermostat, thus there is no need for electrical power supply