Frequently asked questions:

1) Which vent opener should I choose?

It depends on how much your window weight. All our vent opener is divided into three weight categories.

Window weight 0-7 KG – Univent®, Ventomax®, Thermovent®, Sesam Spiro®, Optivent® & Sesam Liberty®

Window weight 7-24 KG – Megavent® & Megavent Storm®

Window weight 24-60 KG – Gigavent®

2) Which vent opener covers my need?

All vent openers have their unique purpose such as a skylight window, side window, sliding door, cold frame, jalousie window and stable window.

Skylight window – Thermovent®, Ventomax®, Sesam Spiro®, Univent®, Optivent®, Megavent®, Megavent Storm® & Gigavent®

Side window – Univent®, Optivent®, Megavent®, Megavent Storm® & Gigavent®

Sliding door – Univent®

Cold frame – Univent®

Jalousie window – Sesam Liberty®

Stable window – Optivent®


3) How to adjust the opening temperature?

  • Turn clockwise, if an earlier start/higher opening temperatureis required.
  • Turn anti-clockwise, if a later start/lower opening temperature is required.

One twist of the cylinder equates to approximately 0.5 °C. You should be aware that the temperature can vary somewhat within the same greenhouse.

For Professionals/B2B
For Professionals/B2B


Please contact us

Phone: (+45) 59 65 17 17
Mail: info@orbesenteknik.com

Monday-Thursday: 8:00 am – 16:00 pm

Friday: 8:00 am – 14:00 pm