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Length of Greenhouse - in feet |
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Width of Greenhouse - in feet |
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Height of Greenhouse - in feet |
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Fan CFM Needed - This is the optimal exhaust fan CFM (Cubic Feet per Minute) rating for your greenhouse. A fan this size will exchange the air in your greenhouse one rate per minute which is the recommended ventilation for most small greenhouses. |
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Choosing Shutters
Exhaust fans require 18 inches (324 sq. in) of air intake area per 1000 CFM to function properly.
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