All greenhouses need good ventilation to successfully grow plants and cuttings. How much is enough? Use our JavaScript Greenhouse Ventilation CFM Calculator below to find out what size fan you need in your greenhouse to promote healthy growth. Exhaust fans or ventilation fans are rated on how much air is moved in CFM (Cubic Feet per Minute).
Use the JavaScript Greenhouse Exhaust Fan CFM Calculator to determine your needs:
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.