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Greenhouses and Greenhouse Accessories

Automatic Greenhouse Window Opener — 28 x 33 x 5 cm

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Automatic greenhouse ventilation

A temperature-responsive window opener is a mechanical opener for a greenhouse window. It responds to temperature changes, opening the window as the greenhouse warms and closing it as the temperature falls. It operates without an electrical connection. Check the window’s weight and the opener’s stated limits before choosing it: the maximum window weight is 14 kg, and the maximum opening length is 45 cm.

Product details

  1. Temperature-responsive operation: The stated opening temperature range is 17–25 ºC. The opener adjusts the window as the temperature changes; the source does not specify a fixed opening temperature within that range.
  2. Window weight limits: The maximum window weight is 14 kg. The listed lifting capacity is 7 kg, with a closing force of 0.6 kg.
  3. Opening length: The maximum opening length is 45 cm. Compare this measurement with your greenhouse window and its available movement before installation.
  4. Construction and fittings: The opener is described as having a 2 mm galvanised steel construction, two stainless steel springs and two EASY CLIP mounting systems. The listed product size is 28 x 33 x 5 cm.
  5. Mounting components included: The supplied set includes the automatic opener and mounting components. EASY CLIP fittings are intended to make fitting and removal straightforward; confirm the mounting arrangement suits your greenhouse window.

Experiences with Bloomcabin

  1. "Ordering from Bloomcabin was straightforward, and the team answered my questions before I purchased. I'm very happy with my choice." – Sophie Taylor
  2. "My order arrived carefully packaged and was exactly as described. The quality met my expectations, and I would happily purchase from Bloomcabin again." – James Wilson
  3. "I had a question about my delivery, and Bloomcabin's customer support was friendly and helpful. They kept me informed and made the whole experience easy." – Olivia Anderson

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We offer flexible and secure payment methods to make your shopping experience smooth and convenient.

Order now and save 45% with Bloomcabin. Bring your home and garden ideas to life, with helpful customer support from choosing your product to arranging delivery.



  • Item number: VO.opener
  • Dimensions: 28 x 33 x 5 cm
  • Lifting capacity: 7 kg
  • Closing force: 0.6 kg
  • Maximum window weight: 14 kg
  • Opening temperature range: 17-25 ºC
  • Maximum opening length: 45 cm
  • Packaging: Number of packages: 1; package dimensions: 36 × 6 × 8 cm; package weight: 2 kg
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10 year warranty
Bloomcabin is proud of its high-quality products and maintains these standards every day through a range of manufacturing and quality-control processes. This is backed by a 20-year warranty against wood rot in timber structures and a 10-year warranty against functional defects.
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