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What size shape and number of blades are needed on a ceiling fan for the best cooling?
Wiki User
∙ 12y ago
Hi:
Guess what,,,, there are quiet a few variables to play with within this question you have asked.
- 1,,, How much noise can you tolerate ?
More air movement = more noise
- 2,,, The pitch, or angle of the blades are important to.
Again,, how much noise can you tolerate? More pitch at fixed speed = more noise
- 3,,, Usually,,, the more blades the fan has the less
tendency they will have to create that chopping sound we have all come somewhat accustomed to in variable degrees
- 4,,, The faster you run the sucker the louder it gonna
get!!!!!,,,,,, Sooooooooooo,,,, how much noise can you tolerate?
- 5,,, The larger diameter fans will stir and move more air
per given rate of speed. ( but can your ceiling box hold the additional weight of a larger fan???? My general rule of thumb when mounting a electrical ceiling box that is in all probablility going to or someday will hold up a ceiling fan is to install it so that I'm not scared to put my full body weight on it by literally hanging on and stepping off the ladder. The equation for this is wierd but none the less,,, ( Very Very & Long Term Reliable ) 223 pound man swinging from a 4x4 ceiling box safely = good and strong mounting hardware for said box and fan. LOL,,,, nuts huh ???? Codes actually only require the ability to hold 50 lbs in my area. ( But ) would you want your toddler under there playing ??????Me thinks not.
Hope this helps:
Jimiwane
Wiki User
∙ 12y ago
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In days gone by, it was commonplace to find a ceiling fan slowly turning in several rooms of a house when the temperature outside started to rise. Those fans were more than just an attractive appliance. Those fans were keeping the heat at bay. The principle behind a ceiling fan is that it creates movement of the air in a room, thereby causing the moisture on a person's skin to evaporate. When the moisture evaporates, it leaves the person feeling cooler. That process was extremely useful and necessary in the era before air conditioning was invented, since those fans were one of the only ways to bring cooling into a home. With the invention of modern air conditioning, many people moved away from installing ceiling fans in their homes. That is an unfortunate choice, since ceiling fans are equally as useful in a modern setting as they were in the past. By using a ceiling fan, a homeowner can actually raise the thermostat and still be as comfortable. Of course, raising the thermostat definitely helps save on energy costs. When making the decision to install a ceiling fan in a home, it is wise to measure the room in which the fan will be installed. The area of the room should dictate the size and number of fans needed. For example, if a room is narrow and long, it may be best to install two separate ceiling fans for the most efficient cooling effect. Likewise, if a ceiling fan is not big enough for a room, the desired air circulation will not take place. Contrary to what some people may think, a ceiling fan is not just useful during the hot days of summer. If a ceiling fan is reversible, the benefit can extend well into the winter months also. Most reversible fans have a switch that can be flipped to allow the fan blades to turn in the opposite direction. By reversing the direction that the fan blades turn, one can send warm air down from the ceiling to help heat the cooler air lingering near the floor. This helps extend savings all year round.
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