Ceiling Fan Air Flow Comparison

Ideally aim for at least 12 inches.

Ceiling fan air flow comparison.

These 6 ceiling fans are quiet powerful and stylish options for your home. The number depends on a few things. The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm. Blade pitch blade shape and size rpm height from ceiling and motor size.

Ceiling fan airflow and efficiency are often overlooked but the amount of air your fan moves each minute impacts the level of performance. The most energy efficient ceiling fans use less than 60 watts on average and have high airflow. This 31 fan with its powerful motor spins the 6 all weather blades at a 25 pitch to provide 3055 cfm air flow. To qualify for energy star certification a fan must produce at least 155 cfm 100 cfm and 75 cfm of airflow per watt on the high medium and low speeds respectively.

For rooms with ceilings eight feet or shorter flush mount fans like the cirrus flush mount ceiling fan from modern fan company are the ideal option. The measurement is taken when the ceiling fan is on its highest speed and uses both the volume of air and the rate at which it moves. Dividing the airflow generation by the power consumption gives the ceiling fan s efficiency. The fan s motor the blade pitch and the length and or shape of the fan blades.

Cfm is the most common form of measurement when speaking about ventilation heating and cooling. Five factors work together to determine the airflow and efficiency of a ceiling fan. On average a ceiling fan has an airflow generation of about 5 500 cfm and consumes 70 w. If you look into any ceiling fans for patios comparison chart on the web you will see that it is hard to beat the callito in design and functionality.

In this case the average ceiling fan efficiency is 5 500 cfm 70 w or about 79 cfm per w. For fans that are less than 49 the note will read compare. Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan. No need to tolerate squeaky shaky dimly lit or downright gaudy fans any longer.

Put simply cfm is how much air a fan moves.