A: Size does matter when placing Revolution® HVLS Fans. Larger diameter industrial fans will move air further down rack aisles and over some obstructions. Smaller diameter industrial fans can be most effective in specific work areas or where installation space is limited.



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Air velocity will vary throughout the zones depending on the industrial fan's diameter and speed setting.



When used for cooling people, choose a Revolution® HVLS Fan that moves air at a minimum of 2 miles per hour in the targeted zone.



The minimum air speed needed for destratification is one half mile per hour.

 

4-Blade  Revolution® Fans

 

2-Blade Revolution® Fans