![]() ![]() The model #'s for this product can be seen here. We do not carry this measurement product but we can do a special non-catalog request to check manufacturer price, quantity, and lead times. Sanyo Denki also has an Airflow Tester/Measuring Device that weighs 6kg that can be attached to a device via a connection duct to measure the airflow and static pressure needed for cooling the device. Every application is a little different and only a thermometer placed in your hotspot will tell you whether you need more or less cooling. In a cramped server room you may need to turn the air over 10 or 12 time per minute or more. In a home entertainment center with the standard array of equipment you may need to simply “keep the air moving” (1 or 2 times per minute) and can use a smaller, quieter fan. Using the CFM specifications of a particular fan you can estimate how many times the air will be “turned over” in your application in 1 minute. The result is the volume of your application expressed in cubic feet. (Length X Width X Height) = (volume in cubic inches).Multiply the measurements in inches like this: Measure the inside volume of your application.Ģ. When you are trying to figure out how much air your fan needs to move to serve your purpose you can make an educated guess using simple math.ġ. Both of these alternate airflow expressions can be translated into CFM by the application of simple equations. (The venturi is the big hole in the center of the fan.)ĬFM is sometimes stated as “m3” (cubic meters per minute) or as “liters per second”. As a general guideline you should provide a vent hole area that is equal to approximately 1.5x the area of the fan venturi to prevent excessively high static pressure. It is important to note that CFM specifications are stated at zero static pressure because this is the point at which airflow is highest.Īs static pressure increases airflow decreases. We encourage you to request a quote today after pursuing our inventory or contact our sales team with any questions you may have.CFM (Cubic Feet per Minute) indicates the volume of air that a fan will move in one minute at 0 (zero) static pressure. Whether you have a specific fan style in mind or need to order in large quantities, our team is well positioned to help you find a fan CFM to serve your exact needs. Industrial Fans Direct boasts one of the highest quality inventories in the industry. Under 200 square feet: 2,000 to 3,000 CFMĢ00 to 300 square feet: 3,000 to 4,000 CFM (typically a standard bedroom or kitchen)ģ00 to 450 square feet: 4,000 to 6,000 CFM (usually a master bedroom or living room)Ĭommercial spaces that have rooms far larger than 450 square feet should consider installing multiple fans in order to achieve the fan CFM required to keep guests cool. However, a general guideline can be found below if you do not have the room’s exact dimensions at this time: We have a CFM calculator that can help you determine the exact CFM required to cool your space. When it comes to the CFM for fans in your commercial or residential space, the size of the room is the largest consideration. If the RPM, blade size, and pitch are all large, the fan will move more air each minute and result in a higher CFM. The combination of these three factors will determine the fan’s CFM. If the tilt is greater, the amount of air moved through the room will increase. Pitch: The blade’s pitch plays a significant role in the amount of air flow. The larger the blade, the greater the airflow. RPM: The Rotations Per Minute how often the fan will make a 360 degree rotation every 60 seconds.īlade Size: The size of the blade will determine how much air can be moved. ![]() When it comes to the CFM for a fan, three factors have a significant impact: Even running 24/7, the low CFM would cause the space to feel too warm. ![]() If the CFM is too low, the room will be unable to be cooled and undermine any energy efficiency of the fan. CFM for fans is a critical measurement for determining if a room can be cooled. The larger the space, the higher the fan CFM must be in order to efficiently cool a room. What Is CFM?Ĭubic Feet per Minute - or CFM - determines the amount of air that a fan can move through a room while operating at the highest speed. Continue reading to learn more about the CFM fan requirements that you need to keep everyone comfortable. Among the many factors that determine the effectiveness of a fan (type of motor, size, etc), fan CFM is one of the most crucial. Investing in the best fan for your needs can help you economically cool the space for years to come. When searching for your next fan in your home or commercial space, it is important to purchase a fan that will comfortably keep everyone cool. ![]()
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