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Automatic Vent Opener

[image_frame style=”framed_shadow” align=”left” height=”166″ width=”185″]http://www.gardenhouse.com/wp-content/uploads/2013/08/ventopener.jpg[/image_frame]

Automatic Vents Simplify Climate Control

Automatic vent operators on the roof and base vents require no electricity or batteries. The vent operator contains a paraffin (wax) that expands when the temperature reaches about 65°F, pushing the vent open to its fully opened position at about 85°F. As it cools and the paraffin contracts, the operator’s springs draw each vent closed. It is adjustable within approximately 5°F and easily detachable for manual operation.

The vent opener cylinders can be replaced when they stop working.

GK-VENT        $52.00

GK-VENT CYLINDER $29.00

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