Square Inline Mixed Flow Fans From Greenheck

Greenheck’s new series of SQ Q&A videos answer frequently asked questions about their SQ Mixed Flow Inline Fans. SQ Fans offer a unique combination of high efficiency, low sound, and ease of installation in a square housing design. For supply, exhaust, return or make-up air systems in indoor or outdoor spaces, in sizes ranging from 7-33 and up to 27,800 cfm performance capacity, you can be sure that our SQ mixed flow fans will meet all your ventilation needs. 

There are numerous SQ mixed flow videos available here.

If you only have time for one, check out “Why you should select an SQ mixed flow fan over a legacy Inline fan”: watch the video.

Model SQ mixed flow fans provide a unique combination of installation flexibility, rugged construction, ease of service, high efficiency, and low sound levels. Fans are compact and ideal for supply, exhaust, return or make-up air systems in indoor or outdoor clean air applications where space and efficiency are important. These fans deliver competitive advantages in a wide range of applications including offices, apartments/condos, manufacturing, education, and health care facilities.

Model SQ is a direct drive square inline mixed flow fan designed for intake, exhaust, return or make-up air applications when efficiency, sound and cost are a major focus. Units have multiple mounting options for indoor and outdoor locations, Vari-Green® EC motors and a variety of accessories that make this model a great solution for many applications. All of these features add up to make the SQ Mixed Flow fan the most cost effective mixed flow option on the market.

Learn more about Greenheck’s SQ mixed flow fan here.


Climate Systems provides fresh commercial HVAC innovations to the Sioux Falls area. Call 605.334.2164, email info@climatesystemsinc.com or visit climatesystemsinc.com to learn more.

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