These intake shutters are part of our exhaust fans for all of our greenhouses, including our Cross Country Greenhouses. They measure 24″ x 24″ and control the air ventilation inside the greenhouse, which is one of the most important cooling elements required for greenhouse growing.
How Intake Shutters Work
Firstly, it is important to know that they are motorized and require electricity to operate. The exhaust fan is placed opposite the shutters as high up in the gable end as possible. This is because warm air rises. As the warm air rises to the top of the greenhouse, the exhaust fan continuously sucks out the warm air while the motorized intake shutters bring in cooler air, because they are placed closer to ground level. Usually placement is on either side of the door on the front gable end. This allows cooler air to circulate around the greenhouse creating much needed ventilation for your plants. All plants require ventilation to guard against diseases, mold and mildew
Screens are also available, thus ensuring that harmful insects and debris will not enter the greenhouse.