Which Outdoor Ceiling Fans Move The Most Air?Ī ceiling fan's airflow is measured in the CFM (cubic feet per minute) of air it displaces at its maximum speed. Ideally, for maximum air movement, purchase a fan with a powerful motor, 6 speeds, and a 14- or 15-degree blade pitch. Although a powerful motor will cost you more initially, it will also last longer and provide better airflow. For example, large blades pitched at a 14- or 15-degree angle will encounter maximum air resistance (and move more air), while smaller blades or a lesser pitch encounter less resistance (and move less air). The more air a fan moves, the more powerful motor it needs. How Does Fan Motor Power Affect Air Movement? If, on the other hand, you have a high ceiling, you should hang your fan on a downrod, 8 to 9 feet above the floor to maximize air circulation for you and your guests. If your ceiling is too low to safely allow for that large a gap, you can select a fan with a "ceiling hugger" mount, which keeps the fan blades close to the ceiling but still allows for ample airflow. This provides enough space above the blades to circulate air optimally throughout the room. The ideal gap between the ceiling and fan blades is 10 to 12 inches. How Far Below The Ceiling Should Fan Blades Be For Most Air Movement? Most ceiling fans on the market today have at least three speeds for maximum control over the amount of air movement, select a fan with six speeds. The speed of a fan is described in RPM (the number of rotations per minute) the higher the RPM, the more air the fan moves. Does Fan Speed Affect Air Movement?įan speed is a critical factor in determining air movement. A steeper pitch - 14 or 15 degrees - moves more air, so the blades encounter more resistance thus, a more powerful motor is needed to get the blades spinning rapidly enough to maximize airflow. A pitch of 10 - 12 degrees is relatively flat and moves less air. The angle (pitch) of a ceiling fan's blades is one of the most important factors in optimizing airflow. How Does The Angle Of Ceiling Fan Blades Affect Air Movement? However, in any particular make and model of ceiling fan, longer blades will move more air than shorter ones. Long, wide blades do not necessarily move the most air, and those that are shorter and slimmer can sometimes move relatively large quantities of air. The size of a ceiling fan's blades does matter, but not in the way you might think. The number of blades on a particular fan is a matter of appearance and is irrelevant to the fan's capacity to move air. 2- and 3-bladed fans come in all sizes and are typically styled to look like propellers. Most small and medium-sized ceiling fans have 4, 5, or 6 blades those 52" in diameter or larger generally have 8 to 10 blades. What Qualities In Ceiling Fans Encourage Air Movement?įive factors determine the amount of air movement a ceiling fan produces: the size of the blades, their pitch, the speed of blade rotation, the distance between the blades and the ceiling, and the power of the fan's motor. In the remainder of this article, we'll describe each of these high-airflow outdoor ceiling fans, explain the five aspects of ceiling fans that encourage air movement, and answer some of the most-asked questions about when and where to use a ceiling fan. Two smaller fans with great air movement and non-industrial style are: The three outdoor ceiling fans that move the most air are as follows: So, how do you know which outdoor ceiling fans move the most air? We've done the research, and we have the answers for you! Even for large spaces, there are outdoor ceiling fans that move a lot of CFM - cubic feet of air per minute. Do you have a great porch or patio space that you don't use as often as you'd like to because it's too hot or muggy? An outdoor ceiling fan may be able to help you use that space more often and enjoy your time outside.
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