Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)
Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)
Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)
Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)
Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)
Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)
Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)

Wiwir Solar Heat Sensitive Automatic Greenhouse Vent Opener Auto Vent Kit Gardening Tools for Greenhouses Roof Ventilation (Single Spring Vent Opener)

Regular price $26.99 Sale price $28.99

Brand: Wiwir

Color: Black

Features:

  • Suitable for Most Greenhouses--This opener will automatically open and shut your greenhouse window to maintain the best growing temperature and preventing your greenhouse from overheating.
  • Quality Construction--Reliable, quality built anodised aluminium automatic window opener for greenhouses.
  • Working Conditions--Start to open - 15°c - 25°c (60°-77F); Fully open temperature 35° (19f) or above; Fully open distance 45cm (18")
  • Environmental friendly--Non Electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops
  • Important notice: Do not use this opener anywhere the temperature will exceed 45° (122F).

Details: This very smart autovent uses energy from the sun and surrounding air. The autovents strong metal tube contains a mineral wax which expands with heat. This pushes a piston which opens the vent via a balanced linkage. As the temperature rasises, the vent will open. As the temperature drops, the wax shrinks and a strong stainless steel spring closes the vent and resets the piston. Things to remember: -Do not use this opener anywhere the temperature will exceed 60° (140f) -Please ensure your greenhouse window can be opened freely by at least 45cm (18") -Get the very best from your greenhouse plants and veggies - don't leave it to chance! Package included: - Automatic window opener x 1 - English manual x 1

Package Dimensions: 14.6 x 3.8 x 2.0 inches


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