Ceiling Fan Cfm Ratings

A fan should have a cfm rating high enough to replace the air in your bathroom at a rate 8 times per hour.

Ceiling fan cfm ratings.

Ceiling fan lighting requirements. This is the actual volume of air that the fan is capable of moving on high speed. For a room between 144 225 square feet you should get a ceiling fan that has a 44 to 50 blade span and recommended cfm rating of 1 600 and 4 500. These are ratings that the fan receives based on full speed performance.

The cfm is determined by the efficiency of the ceiling fan in other words the amount of air it can circulate in cubic feet per minute. Cfm is the most common form of measurement when speaking about ventilation heating and cooling. Open basements large rec rooms over 450 square feet 5000 to 9000 cfm. Most versatile comet.

Each bath fan will indicate the maximum square footage it can t ventilate. Both the volume of air and the rate the air is moving is measured. Most fans are. Large bedrooms family rooms or living rooms up to 450 square feet 4000 to 6000 cfm.

Ceiling fan cfm airflow ratings doe requires ceiling fan manufacturers to test and publish cfm airflow ratings. Cubic feet per minute. If all else fails check the packaging. After calculating your required cfm make sure to check the rating of any fan your purchase.

What size ceiling fan should you get. 5 x research source a fan with too low of a rating won t remove moisture effectively while buying a fan with too much power may lead to unnecessary noise as more powerful fans tend to. Purchase a bathroom fan with the required cfm rating or higher. Cfm stands for cubic feet per minute it is also referred to as airflow.

Check out the quick reviews below of our top five ceiling fans or scroll deeper for more helpful buying info and full reviews of those models plus other high ranking options. Determine the size of your bathroom with this formula. Other considerations include blade pitch the fan s motor and the shape of the blades. For rooms that are 144 square feet a ceiling fan with a blade span under 42 and a cfm rating of 1 000 3 000.

It is my opinion that this is the most important piece of information. Small rooms under 200 square feet up to 3000 cfm. The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm. Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan.

Room size cfm rating. Ceiling fan comparison chart. Kitchens dining rooms and bedrooms up to 300 square feet 3000 to 4000 cfm. 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.

Length x width x height x 0 13 minimum cfm rating. The cfm rating on your ceiling fan indicates how much air a fan moves while the fan is on its highest speed.