Ceiling Fan Airflow Chart

Cfm is the volume of air being moved every minute whereas wind speed how fast the air is moving in mph miles per hour or lfm linear feet per minute both of which are directly related to.

Ceiling fan airflow chart.

Those designed for airflow and those designed for static pressure. Some fans and cases even come with manual switches for basic fan control. A cfm of 75 is the minimum number to make a fan efficient. Ceiling fan airflow and efficiency are often overlooked but the amount of air your fan moves each minute impacts the level of performance.

See what gives a fan power airflow efficiency and why. A ceiling fan can greatly improve the oxygen flow in your home and make it fresher. Cfm measurements are taken when a fan is on high speed then that number is divided by the watts used. Cfm is the most common form of measurement when speaking about ventilation heating and cooling.

A large ceiling fan in a small room will create an uncomfortable amount of airflow. Ceiling fan manufacturers are required by the doe to publish the airflow of each fan in cfm cubic feet per minute which is not the same as wind speed. To help you pick one for your house we have compiled a list of the best airflow ceiling fans on the market rated according to their size power material and color. 36 to 48 ceiling fans have airflow efficiencies ranging from approximately 71 to 86 cubic feet per minute per watt at high speed this bit of information is telling you what the expected range of efficiency should be for the size of fan you are considering.

Case fans generally come with two types of fins. Cfm is key when determining a fan s airflow efficiency. Cfm measuring airflow efficiency. The four areas that determine airflow are blade shape blade pitch distance from ceiling and motor quality.

Airflow optimized fans are quieter and great for unrestricted areas like the front of your case. The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm. For fans that are less than 49 the note will read compare. Airflow or static pressure.

Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan. Blade pitch blade shape and size rpm height from ceiling and motor size. Airflow efficiency is the cfm divided by the watts amount of energy used to run the fan at its highest speed. Five factors work together to determine the airflow and efficiency of a ceiling fan.