How To Calculate the Right Number of Fans For Your Space

How To Calculate the Right Number of Fans For Your Space

If you are hoping to upgrade your commercial HVAC system with destratification fans, it is important to know the proper placement and number of fans needed to give your space the optimal temperature control. When calculating out the exact number of fans needed for a given space, you must first perform a volumetric analysis of the space. This can help you calculate the cubic volume of air, and how many fans are needed to rotate the air once per hour. At Air-Row Fans, we specialize in the distribution of commercial destratification fans designed to revamp your existing HVAC system with improved air distribution and energy savings.

In order to calculate the number of fans needed for your space, we need to start with the volume of the space. Take the length X width X average height of the space, and you will determine the volume. For example, if you have 19 foot tall ceilings, with a width of 235’ and a length of 130’, then your volume would be 580,450 cubic feet. From there, you need to determine the intended model used and the fan’s cubic feet per minute (CFM) rating. For example, the Air-Row Fans LA-248 model has a CFM of 740 at its highest setting. From there, you take the volume and divide it by 60 (60 minutes in an hour) and divide that by the CFM number. For this example, it would be:

580,450 / 60 / 740 = 13.07

From this calculation, we can see that it would take approximately 13 of our LA-248 destratifaction fans to turn the air over once every hour, helping maintain uniform temperature and air distribution throughout the space. With your entire space evenly heated or cooled, you can maintain your current HVAC set up, while still gaining great energy savings in the process.

At Air-Row Fans, we work hard to ensure every client can achieve the greatest possible energy and cost savings through the installation of our destratification fans. Our team of experts has worked with clients in manufacturing, retail, distribution, and more, and is sure to know the perfect solutions according to your needs. Call us today at 317-574-1009, or visit our website to browse our inventory.