Are you wondering what size fan you should purchase for your greenhouse? Use the greenhouse fan calculator below to easily determine the cubic feet per minute (CFM) needed to create the ideal growing environment. Proper ventilation is crucial for maintaining optimal temperature, humidity, and air quality within your greenhouse. Just input the dimensions of your greenhouse, and our calculator will provide you with the approximate CFM rating required for effective ventilation. Take the guesswork out of your greenhouse fan selection and ensure your plants thrive!
Our 12" Exhaust Fan provides 760 CFM. We can also special order larger fans. A 16" fan is rated at 1,250 CFM, and a 20" fan is rated at 3,000 CFM.