Ceiling Fan Cfm Ratings

Ceiling fan lighting requirements.

Ceiling fan cfm ratings.

Determine the size of your bathroom with this formula. After calculating your required cfm make sure to check the rating of any fan your purchase. It is my opinion that this is the most important piece of information. Put simply cfm is how much air a fan moves.

The cfm rating on your ceiling fan indicates how much air a fan moves while the fan is on its highest speed. Cfm is the most common form of measurement when speaking about ventilation heating and cooling. This is the actual volume of air that the fan is capable of moving on high speed. These are ratings that the fan receives based on full speed performance.

Other considerations include blade pitch the fan s motor and the shape of the blades. 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. Most fans are. 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.

Both the volume of air and the rate the air is moving is measured. 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. Go back to part 1. If all else fails check the packaging.

Ceiling fan cfm airflow ratings doe requires ceiling fan manufacturers to test and publish cfm airflow ratings. Most versatile comet. Large bedrooms family rooms or living rooms up to 450 square feet 4000 to 6000 cfm. Open basements large rec rooms over 450 square feet 5000 to 9000 cfm.

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

Each bath fan will indicate the maximum square footage it can t ventilate. 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. Cubic feet per minute. Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan.

What size ceiling fan should you get. A fan should have a cfm rating high enough to replace the air in your bathroom at a rate 8 times per hour. Room size cfm rating. Length x width x height x 0 13 minimum cfm rating.

However it is important to focus on other attributes as well and not only focus on cfm ratings because cfm is based on globally. The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm.