Automatic Greenhouse Vent Openers, Greenhouse Venting & Greenhouse Accessories
The automatic vent openers are heat activated and require no electricity to operate. The upper and lower vents open and close at an adjustable preset temperature due to the melting and expansion of beeswax in a piston. Cooling of the Growing Dome is then acheived as hot air escapes from the top vents and cold air is drawn in through the lower vents. This creates a "chimney" effect and prevents overheating. The window vents close automatically, freeing you to go on vacation without worry. The larger domes, instead of lower vents, have cooling fans that are automatically regulated. The vent openers can be easily disconnected to close the vents at will. The two types of openers we provide for the Growing Dome are described below.
Uninvent Openers |
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The Univent Openers are standard on the smaller sized vents and have proven be reliable and efficient automatic vent openers. The threaded pistons are easy to adjust, which means you have total control over when your vents open and close. The Univent Openers are also simply disabled by squeezing the arms together and disconnecting from the mounting bracket. it is good to do this in winter if snow builds up on the outside of the dome. |
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Bayliss Hydraulicheck Vent Opener |
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The sturdy Bayliss Hydraulicheck vent openers are custom made in the UK and allow the Growing Domes to withstand high winds. The "hydraulicheck" feature of the opener prevents the vent from being yanked open by strong winds. These openers are highly recommended for Growing Domes that are on a hilltop or ridge exposed to prevailing winds, that are located in an area that receives gusts in excess of 60 mph, and/or that are in a very windy area. As part of the Windy Weather Package, you will receive a prescribed number of Bayliss Openers per vent to protect your vents from wind damage. |
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Please send questions to: info@growingspaces.com / P.O. Box 5518 / 1868 B Majestic Dr. / Pagosa Springs, CO 81147
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