If you remove the sticker off the back of fan there is a little plastic clamp that u can remove with a micro screwdriver and clean it.
Ceiling fan rpm average.
The cfm rating on your ceiling fan indicates how much air a fan moves while the fan is on its highest speed.
Other considerations include blade pitch the fan s motor and the shape of the blades.
However if you need some actual numbers i measured the rpm of my very average stand fan evernal 16 inch 40cm blades 60 watts and the speeds were as follows.
The fan s motor the blade pitch and the length and or shape of the fan blades.
Good air delivery is identified at 205 230 cmm.
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.
The greater the cfm the more air a fan will move.
Non reversing ceiling fans are allowed to have slightly higher rpms.
A watt is a unit of energy or power that an appliance or electronic device uses.
A downrod ranges from 3 to 72 inches in length and is what suspends the fan from the canopy.
However it is not actually rpm at low speed that is critical to minimize the breeze during winter operation it is the actual airflow.
But the important part is this.
This is because 2 different fans running at the same low rpm can produce quite.
Depending on the brand 4000 to 6000 rpm.
An instrument called an anemometer is used to calculate the wind speed by placing it in the direct flow of the wind allowing the propeller or cups to spin through the wind.
Airflow delivered by a ceiling fan is the rpm of the fan measured in cmm cubic meters per minute.
Almost all ceiling fans that have more than 4 speeds 6 or 7 speeds have the lowest set lower than the average ceiling fan.
Wind speed is calculated by measuring how quickly on average air can get from the ceiling fan blades down to the floor and is commonly reported in miles per hour mph.
To hang a fan at the appropriate height in a room with a ceiling nine feet high or higher a ceiling fan that uses a downrod is the right fit.
Rather a hi speed fan will run at 380 390 rpm.
Both the volume of air and the rate the air is moving is measured.
Average high ceilings.
The other answers all told you it depends without giving any numbers.
The number depends on a few things.
How to calculate the wattage of ceiling fans.