Explore HVLS for Powerful, Energy‑Efficient Airflow

High Volume, Low Speed Fans (HVLS)

The old thinking was simple: localized high-speed fans circulate air. But that didn’t work in large spaces like warehouses because you need so many. Then HVLS (high-volume, low-speed) fans were introduced into industrial environments and changed the game. HVLS fans rotate at a lower speed (rpm), yet their specially designed airfoils circulate a higher volume of air throughout a large space. They push air from high ceiling to floor and upon hitting the floor, create a “floor jet” of horizontally moving air causing the air movement that cools the human body.

The result? Massive airflow coverage for noticeable cooling across large areas. HVLS fans bring cooling where AC doesn’t make sense, or create a "multiplier" effect for HVAC where it does. Your people work safer and more comfortably to keep operations moving.

Why a Big Ass Fan?

Big Ass Fans leads the industry in performance, safety, and reliability through engineering, testing, and innovation. We provide you with a full-scope solution from a single United States-based company. Engineering and design, sales, manufacturing, installation management, project coordination, service, and support is all provided by Big Ass Fans experts. Our fans are backed by real performance data, industry-leading safety systems, proprietary SpecLab® airflow analysis, and a global support network. We deliver proven results competitors can’t match.

We are serious about creating comfortable and efficient airflow everywhere your building and people need it. And we have the technology and equipment to guarantee you get it. Don’t settle for less.

Year-Round Performance

During winter months, hot air rises, while the colder air stays at the floor level with the workers and the thermostat. Your heater works overtime to keep your people warm, and sometimes it just can’t keep up.

Big Ass Fans, operate at lower speeds, and push the hot air down and allow it to circulate without creating a cooling breeze. You get more uniform air temperatures throughout your facility. The warmer air reaches your people, lessening the strain on your heater. The result? Reduced energy bills and decreased operating hours on your heater.

All Big Ass Fans HVLS fans come with variable frequency drives that allow for low speed operation. Traditional small-diameter ceiling fans often depend on reverse mode to circulate warm air in winter. In large, open facilities with high ceilings, this strategy falls short because warm air can’t travel efficiently across the ceiling and back down to floor level, limiting its impact where it matters most. You get full-year comfort and effective cost savings.