
Solar powered actuators, based on expansion of wax
in a tube, open the upper and lower vents at a preset temperature.
Both openers are adjusted by screwing the tube or adjusting nut inwards
to have them open at a lower temperature or screwing outwards to have
them open at a higher temperature.
Hot air escapes from the top of the Growing Dome, creating a "chimney"
effect, drawing in cold air through the lower vents, which prevents
overheating. The window vents close automatically, freeing you to
go on vacation without worry. The larger domes, instead of lower vents,
have solar powered or 110V cooling fans that are automatically regulated.
The two types of openers are described below.
Bayliss Vent Opener |
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The larger domes, 26' and up have Bayliss openers on the top vents and the 26' have Univent on the lower vents.You may want to upgrade to Bayliss openers if you live in a windy area because the Univent openers (standard on smaller domes) may not be strong enough to withstand high winds. The smaller domes have smaller windows and therefore you may not need the upgrade unless you live in an extremely windy area. Also, if you are in a high wind area you may want to add an extra Bayliss opener to the top vent; this is the double Bayliss option. |
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Uninvent Openers |
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The Univent openers are standard on the smaller domes and have proved to be very satisfactory over the years. In high wind areas they may not withstand the forces involved in which case you would want to upgrade to the Bayliss option as described above. In the winter you can disconnect these openers by squeezing the arms pictured on the right hand side of the left-hand photo below. |
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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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