Greenheck Redesigns HVLS Overhead Fans
December, 2025
Greenheck has announced the redesign of its DS-3 three-bladed and DS-6 six-bladed High Volume Low Speed (HVLS) overhead fans, engineered to deliver significant performance advantages, best-in-class reliability, advanced configurability, and ease of installation for a wide range of applications.
The redesigned DS Series fans provide higher air performance up to 281,700 cfm, larger coverage areas, and increased cooling effects up to 15°F, helping to improve comfort and reduce energy costs. Engineered for superior efficiency, the 
DS-3 and DS-6 achieve Ceiling Fan Energy Index (CFEI) values up to 83% higher than the minimum DOE requirements. Each model is rated for a maximum operating temperature of 130°F/55°C and carries an industry-leading IP66 ingress protection rating, ensuring protection against dust and water in extreme conditions.
The DS-3 and DS-6 are compatible with the industry’s widest range of control options, including ModBus® RTU, BACnet® MSTP, 0-10VDC, and more, and are available with a variety of factory-programmed controllers, including economical 4-speed and multispeed analog controls. A factory-assembled power pack, along with additional time-saving features like plug-and-play wiring, cut installation time in half. A field-adjustable extension tube enables quick, easy adjustments to the fan’s drop length, while automated commissioning and diagnostic test modes simplify fan setup and operation.
For more information about Greenheck’s DS-3 and DS-6 HVLS fans, visit www.greenheck.com/products/air-movement/fans/overhead-hvls-fans
About Greenheck
Greenheck is a global leader in engineering and manufacturing air movement, control, and conditioning equipment. For more than 75 years, we have been committed to promoting the highest levels of indoor air quality by offering the widest range of ventilation products for commercial and institutional buildings. Through superior customer service, we continue our legacy of innovation as experts in air movement by connecting our mechanical representative partners and customers with the newest products. With our CAPS® product selection tool and HVAC University education series, Greenheck offers technology and product knowledge to ensure that when you work with us, you are working with the easiest company to do business with.
To learn more, visit www.greenheck.com or contact Greenheck, P.O. Box 410, Schofield, WI 54476-0410, (715) 359-6171, FAX (715) 355-2399.