Eliminate air stratification, reduce condensation, and eliminate hot and cold spots effectively and economically with American Coolair’s Type BK fans. These fans feature aluminum propellers directly mounted to totally enclosed motors, and encased in coated steel wire guards that comply with OSHA standards. Each BK fan comes with a rafter hanging kit designed to easily mount to a “2-by” wooden beam or up to 2-1/8” metal tubing as standard. Wall and ceiling mounting brackets, as well as chain kits, are also available to install the fans virtually anywhere in the building.In greenhouses, proper air circulation helps plants grow better by increasing the amount of CO2 at the plant level and reducing condensation on plant surfaces, reducing the risk of disease.In chicken or other livestock houses, proper air circulation provides even cooling and reduces livestock stress levels.In general, the amount of horizontal airflow needed is 2½ to 3 CFM per square foot of floor space. Use the fans whenever the house exhaust fan system is not operating at full capacity. Horizontal airflow fans should be installed between 6’ and 10’ high, but no less than 1’ from the roof. Fans should be placed above the top of the crops or livestock to be cooled. Use the figures to the left to determine the best fan layout for any type of building.
