Blade pitch is the angle of the blades when compared to the horizontal. Quality fans generally have a blade pitch of 12-14 degrees. Lesser fans can have a blade pitch as low as 8 or 10 degrees. The higher the pitch, the more pressure the fan blade applies to the air in front of it as it turns and the more air is forced downward. That's why some lesser quality fans can look like they're spinning up a storm, but when you stand under them, you can't feel anything.

I use the pitch gauge made by Miniature Aircraft. There are many different brands out there, whichever one you use place it on the last 1/3 of the main blade. This is the part of the blade that counts the most. The last 1/3 is where almost all of the lifting force comes from. Level the flybar, sight down the pitch gauge and rotate it until the top edge of the gauge is parallel with the flybar.

A2: Minimum distance between ceiling or a projecting beam & ceiling fan blades should be 0.25 Mtrs ( Approx 9.5 Inches )

Generally it is not recommended to use CFLs in vibrating environments. Vibration can cause the electronics in the CFL to fail. There is one CFL bulb (FLE11) that is available for use in a ceiling fan. Check the package for this application.

You can use a ceiling fan anywhere you have a ceiling. Covered decks, porches and gazebos make great spots for a fan. Underwriter's Laboratory lists fans for outdoor use are two types of listings: "damp location" and "wet location". Damp location is suitable for most outdoor uses while wet location is intended for more severe situations.

Yes. NuTone bath fans are designed to provide adequate cooling for motors and lighting, as well as products with integral heaters.

Definitely. Joyce? provides a fan beam mullion for the studio rooms to conceal the wiring. For a gable room it is mounted to the ridge beam. You should make sure you have the proper clearance.

Yes. Most manufacturers of ceiling fans have adaptable fan canopies or mounting systems that enable installation on high ceilings. Follow the instructions provided with your fan for details. If your fan does not have such items included, most ceiling fan retail outlets carry accessory adapters that can be used for this kind of installation.

This depends mainly on the CFM (cubic feet per minute) rating which indicates the amount of air flow that is moved. Your ceiling fan dealer or manufacture can determine the CFM ratings for different ceiling fans. Another way is to compare different fans during actual use in the store and feel the breeze each produces. The fan with the greatest breeze will usually have the greatest CFM rating.

A wireless remote can be attached to most ceiling fans allowing remote control of the motor and light.

A8: Efficiency of a ceiling fan is a ratio of air delivered by fan in Cubic Mtrs Per Minute and electrical power input in Watts, when fan is operated at rated voltage. (This is also known as a ?service value? of a fan ).

We don't need to remove them. When the room is dark, the lamp will not be noticed or get in the way of the stars. Same with ceiling fans. They are not an obstacle. In fact, when the fan is on, it feels like a breeze coming down from the sky.

A blade with teeth which vary in gullet depth, set angle and number per inch (pitch). Less vibration, less noise and smoother cuts are the benefits. Variable pitch blades are particularly beneficial for cutting tubing, structurals and other interrupted surfaces which tend to induce strong vibration forces. When combined with positive rake, the variable pitch blade has no equal for faster work penetration and increased sawing productivity.

Negative incidence is where the chordline of the blade is actually pointing the blade "down" in relation to the windflow. The chordline is a line from the tip of the leading edge to the very tip opf the trailing edge. Negative incidence occurs when the blade zero lift angle of attack is below the plane of rotation, resulting in a self-starting rotor that is highly inefficient, and has low lift, reaching low RPM.

The DeGeorge Fan is the only one of its kind in the world. Our fan is unique because of its safety factor which is absent in all other ceiling fans. Great for confined or low-ceiling areas. The fan features two motors: the first motor rotates the six 45-degree pitched blades, and the second rotates the bottom louvered grill.

Nothing... basically for our purposes they reference the same thing. Both are in regard to the actual angle of attack of the blade in reference to the incoming air.

The blade sweep of a fan is generally the circular area that is covered by the fan's blades while in rotation. The diameter of a fan's blade sweep, on fans with multiple blades, is measured by taking the distance from the edge of one blade to the edge of the opposite blade. See your fan's specifications sheet for more information about blade sweep.

No. A dimmer can damage the fan motor. Only use a Fan Speed Control to control a ceiling fan. Fan Speed Controls have special circuitry that will not damage the motor. For ceiling fans with a built-in light fixture, combination Dimmer/Fan Speed Controls are available.

Most people who purchase a ceiling fan do so to utilize the first option. You expect to turn on the fan and feel a breeze, or at least some moving air. This is most effective with the fan in downdraft mode on a medium or high speed. While you will feel the strongest breeze directly under the fan, if the fan is good quality, and the proper size and installation for the room, you should be able to feel air circulating no matter where you are in the room.

To get maximum comfort and energy savings, it is necessary to choose the correct size fan for a room. Blade span is the key. A fan that is too small or too big for your room may look awkward. A fan that is too small probably will not move enough air and a fan that is too big might overpower the room. We recommend the following: Large Rooms - For rooms up to 225 square feet (15' x 15') and larger, use a fan with a blade span of 50", 52", 54", or 56".