The Differences Between HVLS Fans And Air Conditioning

What is a HVLS fan & why might you need one?

An HVLS fan is a high volume, low speed fan that is engineered to move a large volume of air in an energy efficient way. These large diameter fans create a slow-moving column of air that circulates throughout the room to produce a gentle, constant airflow. HVLS fans stand out for their performance in challenging conditions, making them ideal for use in industrial and commercial settings as well as other applications where traditional fans may not be sufficient. It’s a good option to consider if you’re looking for a way to improve air circulation in an industrial space.

How is an HVLS fan different than a ceiling fan?

While both types of fans move air, HVLS fans are much larger than traditional ceiling fans. In fact, an HVLS fan usually has a diameter of 8 feet or more, creating more surface area to push a greater volume of air. Unlike traditional ceiling fans, HVLS fan blades are specially designed to create momentum, which allows the air to continue moving even after the blades have stopped pushing it – ideal for energy efficiency. A single 20-foot Z-Tech HVLS fan can move about 360,000 cubic feet per minute (cfm) of air – equivalent to a minimum of 36 standard fans – with just a 1 to 2 horsepower motor.

Another key difference between an HVLS fan and a ceiling fan is the speed at which they operate. A Z-Tech HVLS fan moves air at a low speed, between 1 and 9 miles per hour, whereas a traditional ceiling fan operates at 40 to 50 miles per hour. This low speed can efficiently mix the air without creating a disruptive breeze. The result is comfortable and consistent airflow that can help improve indoor air quality and occupant comfort at a lower operating cost – typically $0.17 per hour!

What are the benefits of improving air circulation in an industrial space?

Reduced energy costs: HVLS fans are designed to mix large volumes of air to create more uniform temperature and humidity levels. By combining an HVLS ceiling fan with air conditioning or a heating system, a facilities manager could reduce cooling costs by up to 30% or heating costs by up to 20%.

Better air quality: Stagnant air can lead to a buildup of dust, fumes, or gases. HVLS fans create a horizontal floor jet that reduces “dead” zones across the facility and prevents stagnant air pockets from forming. HVLS fans also promote evaporation, which reduces humidity levels in enclosed spaces. High humidity levels can lead to mold and bacteria growth, which contributes to poor indoor air quality.

Improved employee satisfaction and productivity: Studies have shown that employees are more productive when they’re comfortable, and improved air circulation can help create a more comfortable working environment. HVLS fans can provide a cooling effect of up to 10 degrees in warm conditions and reduce the discomfort caused by high humidity.

Where are HVLS fans used?

HVLS fans were originally developed for agricultural use on dairy farms. Not only were they successful in keeping cows cool, but the cooling effect also boosted milk production! This successful first test has led to continuous improvements in the technology ever since. Today, HVLS fans are used to cool warehouse workers, reduce humidity in manufacturing spaces, reduce heating and cooling costs in school gymnasiums, and improve air quality in airports and transportation hubs.

What are the options available for HVLS industrial and commercial fans?

VividAir has patented HVLS fan designs proven to provide industry-leading area coverage. The Z-TechTM series is available in nine standard sizes, ranging from 8 to 24 feet in diameter. With its stepped blade design and extreme blade pitch, airflow is maximized and frictional resistance is reduced. VividAir’s Z-ChillTM HVLS fan series supercharges the Z-Tech blades with a patented conditioned air diffuser that distributes cold air over the top of the blades to reduce both temperature and humidity.

For smaller applications, the VividAir ConZumerTM fan is sized right for homes and workshops while still providing cutting edge air movement. The Z-Tech3 fan delivers state-of-the-art air movement at a lower price point with an innovative 3 blade design. VividAir even offers custom color options!

Reach out to VividAir’s air scientists today for an optimized fan placement design and custom quote.