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Are automatic solar-powered vent operators available through Sunshine Greenhouse?

April 26, 2017automatic greenhouse operators Sunshine vent

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Are automatic solar-powered vent operators available through Sunshine Greenhouse?

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We offer an automatic solar-powered vent operator that contains a paraffin (wax) cylinder that expands when the temperature reaches 65 degrees F, pushing the vent open to its fully opened position at about 85 degrees F. As it cools, the paraffin contracts, and the operator’s spring draws each vent closed. It is easily detachable for manual operation.