Selecting HVLS Fans
Selecting HVLS Fans What is an HVLS Fan? HVLS stands for High Volume, Low Speed. The HVLS fans are becoming increasingly popular replacing conventional fans in spaces such as auditoriums, schools, factories, warehouses, greenhouses, hangars, churches, large commercial units etc. Typically, they come in sizes ranging from 7 to 24 ft diameter. Although less common, the term HVLD (High Volume Large Diameter) is also sometimes used. Considerations while opting for HVLS fans Site Conditions These fans are meant for circulating air in large spaces. For a 7 ft fan, approx. 24 ft width and length is desirable for efficient and effective use. Building height is important while choosing HVLS fans. Typically, these fans are mounted at a height of 20 to 22 ft from the ground. Mounting the fan too high may cause the air to get dispersed before it reaches the required cooling area and conversely if it is mounted too low, it may fail to cover the required cooling area. Shape of the ...