Ceiling Fan Cfm Ratings

The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm.

Ceiling fan cfm ratings.

Room size cfm rating. These are ratings that the fan receives based on full speed performance. Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan. Kitchens dining rooms and bedrooms up to 300 square feet 3000 to 4000 cfm.

Cfm is the most common form of measurement when speaking about ventilation heating and cooling. It is my opinion that this is the most important piece of information. Cfm stands for cubic feet per minute it is also referred to as airflow. Most versatile comet.

Length x width x height x 0 13 minimum cfm rating. 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. If all else fails check the packaging. Both the volume of air and the rate the air is moving is measured.

Cubic feet per minute. This is the actual volume of air that the fan is capable of moving on high speed. Purchase a bathroom fan with the required cfm rating or higher. After calculating your required cfm make sure to check the rating of any fan your purchase.

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. Other considerations include blade pitch the fan s motor and the shape of the blades. Determine the size of your bathroom with this formula. Small rooms under 200 square feet up to 3000 cfm.

Ceiling fan lighting requirements. Put simply cfm is how much air a fan moves. 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. 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.

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. Ceiling fan cfm airflow ratings doe requires ceiling fan manufacturers to test and publish cfm airflow ratings. Each bath fan will indicate the maximum square footage it can t ventilate.

Ceiling fan comparison chart. However it is important to focus on other attributes as well and not only focus on cfm ratings because cfm is based on globally. Go back to part 1. 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.

What size ceiling fan should you get. The cfm rating on your ceiling fan indicates how much air a fan moves while the fan is on its highest speed.