Imagine taking your body to its limits by climbing a 60-foot vertical wall in an attempt to reach the top of a mountain. You finally get to the peak and look around expecting to quietly take in the view and feel a cool mountain breeze. Suddenly you hear the high pitch buzz of a high-speed fan motor and instead of that gentle breeze, high winds are nearly blowing you off the mountain. Sender One Climbing Gym – a premier rock climbing gym in Los Angeles, CA – has gone to great lengths to make sure that the moment climbers reach the top of their indoor climbing walls is as comfortable and quiet as possible.

A big reason behind the minimal noise and comfortable climate in Sender One’s climbing space is their use of big commercial fans in combination with small destratification fans. This combination creates the optimal airflow needed to help climbers reach their peak performance.

A Good Tandem Equals a Good Climb

Having multiple climbing walls that simulate large mountainous ranges meant that comfort was a key factor that needed to be addressed during the design process of Sender One. By using big commercial fans in combination with small destratification fans,  Sender One was able to achieve balanced airflow throughout the whole climbing gym.

“The climbing gym is a unique space, and with 30,000 square feet to cover and 3 different ceiling heights, the client was looking for an effective and economical way to promote circulation.  The combination of HVLS fans for broad/general coverage and small destratification fans for spot cooling in tight areas provided the perfect solution. Chris Westberg, CEM – Warehouse Solutions Specialist | MacroAir Sender One Project Distributor

What are destratification fans? Destratification fans are small fans with cannon-like frames that shoot air down to the ground. The shape of the fan is designed to push air directly into concentrated spots.

Why destratification fans work better with big fans: While destratification fans alone can help with distributing air in concentrated areas, there is no means of mixing the air and moving it throughout a space. In the graphic animation below you can see how large, minimal noise fans actually distribute air more efficiently than destratification fans alone. Big commercial fans in combination with small destratification fan can act as the perfect complement to each other.



“The reason we have Zoo Fans (destratification fan vendor) is we think they complement the MacroAir fans. Zoo Fans are made specifically to destratify while we have MacroAir fans for creating turbulence / air flow, ie breezes. Zoo Fans on their own do little to create a breeze unless you’re standing directly under them”. – Wes Shih, COO, Sender One Climbing Gym



It Should be Quiet at the Top

Small industrial fans moving air at high speeds can reach noise levels of around 80 decibels. That’s noisier than a bulldozer or an ambulance siren! If several of these units are used at once, it can create a serious noise pollution problem. That can be problematic for climbers trying to achieve a moment of workout Zen, and it can also be challenging for employees trying to stay productive throughout the day.

How loud is too loud? According to the American Speech Language Hearing Association sounds at 85 dBA can lead to hearing loss if you listen to them for more than 8 hours at a time.

Why are big ceiling fans so quiet? One of the many benefits of using a big commercial ceiling fan is the extremely small amount of noise that it produces while operating. Unlike HVAC systems and small industrial fans that require several noisy parts or a large motor, big ceiling fans are built to improve airflow at a low speed. This in turn has a quieting effect while providing high volume airflow for the spaces in which they operate.

Tell us about your experience with small destratification fans paired with big ceiling fans! Do you notice how quiet big ceiling fans are?  Leave your comment below!

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