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Dr. Greenhouse 20-Inch Louvered Exhaust Fan
Product Dimensions: 23.07 inches deep × 23.07 inches wide × 9.06 inches high
The Dr. Greenhouse 20-Inch Louvered Exhaust Fan is built for serious airflow and dependable climate control in greenhouses, grow rooms, workshops, barns, and agricultural spaces. Powered by a 3,200 CFM EC motor, this fan delivers high-volume ventilation that efficiently removes excess heat, humidity, and stale air while helping maintain stable growing conditions year-round. Designed for energy efficiency and long service life, it’s the kind of workhorse Dr. Greenhouse trusts when airflow matters
most.
This fan features a high-efficiency EC motor with dual ball bearings, delivering significantly lower energy consumption compared to traditional AC motors. Permanent lubrication minimizes maintenance while reducing motor load, extending the lifespan of the fan and keeping operating costs down.Whether you’re cooling a greenhouse in midsummer or managing humidity during shoulder seasons, this fan runs smooth, quiet, and reliable.
A smart touchscreen controller with a large six-inch display gives you precise control over temperature and humidity. The system automatically turns the fan on or off based on environmental conditions, taking the guesswork out of ventilation. With support for timer and cycle modes and up to ten speed settings, the controller allows fine-tuned airflow control. It can manage up to three compatible fans, making it ideal for larger greenhouse setups requiring coordinated ventilation.
Built with industrial-grade durability, the galvanized steel frame, aluminum blades, and corrosion-resistant automatic shutters are designed to handle demanding environments. The shutters open smoothly when the fan is running and seal tightly when off, blocking dust, debris, insects, and cold drafts while reducing cleaning and maintenance time. Efficient heat dissipation further protects the motor and electronics, ensuring consistent performance season after season.
Dr. Greenhouse Tip
Proper ventilation is the backbone of a healthy greenhouse. A high-CFM exhaust fan like this one
doesn’t just cool your space — it helps prevent fungal issues, balances humidity, strengthens plant
growth, and keeps fresh CO■ moving through your crops. Good airflow now saves headaches later.
$389