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Greenhouse
Air Circulation, Exhaust and Temperature Controls
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Juliana Automatic Roof Window Openers
With the Juliana automatic window openers, you can
be sure of an even temperature in your greenhouse (day and night). To be
continuously controlled from 62-73º F.
Available in three types - see
below:
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| Ventomax, galvanized steel -
Is a standard roof window opener. The paraffin filled cylinder expands
and contracts according to the temperature inside of the greenhouse. As
the temperatures rise the paraffin expands and pushes the window open,
as the temperature cools, the paraffin contracts and pulls the window
shut.
Item # JUA4011
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| Uni-vent, aluminum -Works
the same way as the Ventomax, but is superior because it also features a
spring mechanism that assists in pulling the greenhouse window tight when it closes
insuring a weather tight seal.
Item # JUA4021
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| Solar-vent, stainless steel -
The solar-vent isn't really a window opener but more of a solar powered
exhaust system. It has a small fan that runs off of solar power (the
sun) and exhausts air out through the top of the greenhouse.
Item #
JUA4390
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Replacement cylinders are available for all models.
Note: Take care to remove the cylinder during periods with frost,
the windows may try to open, when the sun warms the cylinders. If the windows are frozen, this may cause the cylinders to
burst! Due to their demand for getting rid of surplus energy.
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| Thermostatically Motorized Shutter Fan
Install in the side of the greenhouse to provide additional
ventilation. Unit is thermostatically operated and motorized to insure precise
automatic control of greenhouse temperatures. 110v, 60hz.
Item # SF1200
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