Schaefer Ventilation Equipment offers many different types of shutters, shutter fans and air intakes. Fresh air should enter the greenhouse from the opposite end of the exhaust fans. This is typically done with mechanical shutters. Again, there are many factors, formulas, and recommendations but for the sake of simplicity a very easy rule of thumb is to use one inlet shutter per fan installed, and use one shutter that is 6" bigger than the fan.
For example: You installed two 42" fans, install two 48" inlet shutters.
If you are interested in learning more about the different types of horticulture / greenhouse / hobby house shutters, shutter fans and air intakes we offer, please visit our wide selection of those below.
At Schaefer Ventilation, it is our goal to provide our customer with a ventilation - comfort solution!
