problems contact [email protected]. Every ceiling fan has some type of blade pitch, whether it's a specific degree or a variable / airfoiled blade. These blades function quite differently from the standard blades as the standard blade pitch push the air while a variable pitch scoops and pushes the air simultaneously. The most common problem with ceiling fans that have a blade pitch of more than twenty degrees is the frequency with which the blades have to be replaced. When the blades rotate, they will not circulate the air as efficiently. to this site, and use it for non-commercial use subject to our terms of use. All information is provided "AS IS." The whole point of a ceiling fan is to whip up the air and get it circulating around a room, and these types of fans will not be capable of doing the job. Overall, you’re probably not going to see any significant differences in operational performance between ceiling fans with three or five blades. This can occur when the blade fittings become bent during shipping or installation. One way is to increase the blade pitch of the two-blade fan until the pitch is large enough to generate more airflow than the four-blade fan. Blade pitch is based off the degree at which the blade is tilted to. All Rights Reserved. All rights reserved. We welcome your comments and However, a two-blade ceiling fan could still generate more airflow than a four-blade ceiling fan. View a variety of 22 to 24 Degree Blade Pitch Ceiling Fans for your residential or commercial applications whether it be indoor or outdoor there is a blade pitch that is suited for you. Website operating The pitch can be adjusted to factory settings listed in your service manual, or you can modify the pitch to your desired angle range. It will be like a knife rotating through the air and the noticeable effects will be minimal. The best way to decide whether a ceiling fan has the correct blade pitch is to test it. The higher the degree typically the stronger the motor to push that pitch thus creating more air movement. Dealers will allow you to sample the fans on display and stand beneath them to see the effects. The optimum ceiling fan blade pitch should be a… Avoid any ceiling fans with an angle of less than ten degrees. Perfect for any location this degree of blade pitch is bound to suit you and your room well. The higher the degree typically the stronger the motor to push that pitch thus creating more air movement. Every ceiling fan has some type of blade pitch, whether it's a specific degree or a variable / airfoiled blade. You may freely link Never purchase a fan with a small blade pitch and a big motor. The majority of fans will have a blade pitch of around 14 degrees and will come with an average sized motor. 1995-2018 MH Sub I, LLC dba Internet Brands. Five factors work together to determine the airflow and efficiency of a ceiling fan: blade pitch, blade shape and size, RPM, height from ceiling, and motor size. 25 Degree Blade Pitch and Above Ceiling Fans, (PST) Mon-Fri: 7am - 6:00pm | Sat: 7am - 5pm | Sun: 9am - 5pm. Copyright© Copyright © 1996-2019 CeilingFan.com. When purchasing a ceiling fan, a number of factors will need to be looked at. The traditional view is that the higher the blade pitch is, the better the fan will be, but there are a number of points that need to be considered to make sure the fan blade pitch is correct. Sooner or later the motor will grind to a halt, as it's forced to work too hard for extended periods of time. Take care to consider the proportions of the blades. One aspect that is nearly always overlooked is the fan blade pitch. Blade pitch is extremely important because it determines how much air the fan can circulate, and the ideal blade pitch for a ceiling fan is 14 degrees or above. If a small motor is powering an 18-inch blade, it will break down and have to be replaced more frequently. When the blades rotate, they will not circulate the air as efficiently. The angle of the blade makes a difference in how much air a fan can circulate throughout a room. The most common ceiling fans in the industry come equipped with a 13 to 15 degree blade pitch. Blade pitch is the angle, measured in degrees, between a 180-degree horizontal plane and a ceiling fan's blade tilt. The bigger the blade pitch, the harder the fan is working. The optimum ceiling fan blade pitch should be around 12 to 14 degrees. The blade pitch should be similarly proportionate to the motor used to power it. There may be a requirement for a larger motor to be fitted or for the blade pitch to be increased or decreased slightly. Hi All, how is the rotation determined?when sitting under the fan and looki... Hey guys, I need to replace the fan on my Bryant heat pump. This is the angle of the blade in relation to the fan. Avoid any ceiling fans with an angle of less than ten degrees. It's a 3 blade ... Changing a 52 inch fan blade to 42 inches. This heightens the risk of the blades causing serious injury. The whole point of a ceiling fan is to whip up the air and get it circulating around a room, and these types of fans will not be capable of doing the job. View our Privacy Policy here. All trademarks and brands are property of their respective owners. The best advice is to ignore fans of this nature, unless they are to be used in a very confined space.