Automatic Vent Opener Replacement Cylinder climate crisis Whether you’ve had chickens for

Whether you’ve had chickens for years or are only thinking about getting some

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Veteran farmers and poultry enthusiasts Samantha and Daniel Johnson provide complete and easy-to-follow instructions for 20 essential projects

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Automatic Vent Opener Replacement Cylinder climate crisis Whether you’ve had chickens forThis product is a replacement cylinder to fix an automatic vent opener for the GardenHouse greenhouse. 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 65F, pushing the vent open to its fully opened position at about 85F. The operators springs draw each vent closed as it cools and the paraffin contracts. It is adjustable