Greenhouse Circulation Fan Christy Hemenway Twelve inserts fit into a

Twelve inserts fit into a standard 1020 tray

Establish a beautiful

Every few hours until symptoms subside

9⅝-inch assembled hive body

Home on the (Free) Range: To free or not free range

Greenhouse Circulation Fan Christy Hemenway Twelve inserts fit into a12" HAF (Horizontal Air Flow) Circulation Fan Promote uniform temperatures and reduce heat stress with these greenhouse circulation fans. Installing a ventilation system can increase air quality and improve the efficiency of heating and cooling systems. Horizontal Air Flow (HAF) fans work to move air in horizontal patterns creating a circular airflow pattern needed in hoop houses to maximize heat distribution and humidity control by mixing the air