A cfm of 75 is the minimum number to make a fan efficient.
Ceiling fan airflow rating.
Airflow efficiency is the cfm divided by the watts amount of energy used to run the fan at its highest speed.
The cfm rating of the fan is the key consideration when choosing a fan as it determines the area a fan will cool and circulate.
Cfm measuring airflow efficiency.
At a glance this information helps you to gauge a ceiling fan s airflow and efficiency.
See what gives a fan power airflow efficiency and why.
But what cfm is best.
Cfm is key when determining a fan s airflow efficiency.
The best fans have an airflow of 3 000 cfm or above.
The four areas that determine airflow are blade shape blade pitch distance from ceiling and motor quality.
Cfm is the most common form of measurement when speaking about ventilation heating.
Better ranges from 5 000 to 6 000.
What is a dc motor ceiling fan and what are its benefits.
Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan.
This makes it easy to compare two or more fans of similar size.
This is the main point of this article which i explain in more detail further on.
Best is over 6 000.
The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm.
Good cfm ranges from 4 000 to 5 000.