By John. Ceiling Fan. Published at Sunday, August 19th, 2018 - 07:02:52 AM.
Ceiling Fan Frequently Asked Questions I. What is the purpose of a ceiling fan? A ceiling fan serves two purposes 1. To provide a breeze thereby creating the "wind chill factor" 2. To circulate the air throughout a room or area II. How do ceiling fans lower the temperature? They dont, at least not literally. Unlike an air conditioner, ceiling fans do not directly affect the air temperature. That does not mean, however, that ceiling fans are not effective in cooling. As pertaining to the two purposes listed in question (I): 1. The moving air from a ceiling fan will help you feel cooler regardless of the temperature of a room. It is much the same as being outside in the summer-- it can be 80-90 degrees, and if there is a breeze, it is very pleasant. 2. The circulation from a ceiling fan can disperse the cool air from lower areas (and air conditioning) into the central, inhabited areas of a room. IIa. How do ceiling fans help heat in the winter? Much the same as they help with cooling in circulation. Running your heat in the winter, hot air rises to the ceiling, and so much of the heat is wasted. Running a ceiling fan during the winter, to push down warm air from the ceiling and eliminate cold spots, can save a great deal of heating energy. III. What rooms should have ceiling fans installed? EVERY room. Depending on your personal preferences, any and every room can benefit from a ceiling fan installed. The more time people spend in a given room, the greater the benefit of a ceiling fan. For circulation, especially large rooms, and/or those with high and/or vaulted ceilings. People will have their preferences on where they most prefer the benefits, but ultimately any room is a good idea. IV. What size fan is needed for a particular room? Ceiling fans commonly come in two sizes: 52" for larger rooms and 42" for smaller rooms. Many companies offer 30-36" fans for exceptionally small rooms, and 56-60" fans for larger and/or commercial settings. The most common size by far is the 52" fan, which is typically appropriate for most rooms. V. My ceiling is lower, do I need a hugger fan? Hugger fans are designed to provide the minimum distance between the ceiling and the fan blades. This is ideal for lower ceilings as it provides the maximum clearance between the blades (and other lower parts of the fan such as lights) and the floor. The downside is that the shorter distance between the blades and the ceiling impedes circulation to a degree. Hugger ceiling fans are less effective than regular ceiling fans regardless of ceiling height. VI. My ceiling is higher, how long of a downrod do I need? For maximum circulation, the blades should be positioned 8-10 from the floor. However having the blades too far away from the ceiling can sometimes lessen the effectiveness of heat destratification. Not to having the blades 9 from the ceiling on a 15 ceiling may look a little imposing. VIa. I have a vaulted ceiling, do I need a special kit? Usually not. It is standard for fans to include hardware that will allow the fan to be mounted on a ceiling up to a ~30 degree incline. Hugger fans are not designed to be mounted on a vaulted ceiling. There are other rare exceptions, these are usually noted by the manufacturer and can be adapted. VII. What sort of control options are available? Most ceiling fans made in recent years have a built in three-speed pullchain control. Regardless of whether or not the fan is wired to a separate switch, you have full control of the fan from the chain. Off-high-medium-low. Most fans are also reversible and have a reverse switch built into the fan body. If the fan has a light, the light will have its own on-off pullchain. The entire fan assembly can be controlled without the benefit of a remote switch. Many companies now offer fans with remote speed control options that allow for independent fan and light control without additional wall switches and wiring. These can include wireless remote controls, replacement wall switches, and computerized options that involve one, the other, or both. This allows a fan to be installed in a conventional two-wire hookup and benefit from the control options of a 3 wire (two switch) hookup without installing a third wire. The mobility of a wireless remote and the features of the computerized controls are additional benefits. Ceiling fans with conventional pullchain controls can be retrofitted with remote speed control options such as those mentioned above. The retrofit kits include the wall or wireless remote control, and a receiver that is attached inside the ceiling fan canopy and wires between the fan and the power source. The receiver requires only a two-wire power source, switched or unswitched. VIII. How many blades is best? These days ceiling fans are available with any number of blades from one to eight, although any number below 3 and above 6 is for novelty or decorative purposes only. Most fans have 4 or 5 blades, some are adaptable to take either. Most people assume that more blades move more air, i.e. a fan with five blades moves more air than a fan with four blades. This, in fact, is incorrect. More blades results in a greater load on the motor, and a greater load on the motor causes it to operate at a slower speed. A fan with less blades operating at a faster speed will more more air than a fan with more blades operating at a slower speed. This is why most commercial fans have three blades and a high speed motor, to provide the greatest amount of airflow efficiently. IX. What are the quality differences between fans on the market? Many different fans are available these days, with a great degree of different options, styles, designs, and prices. Often times people buy a fan for appearance-based reasons. But most consumers, about to spend a significant amount of money on a ceiling fan (or fans) are concerned about getting the best quality product, or at the very least the best quality product within their price range. It is a commonly held theory that you get what you pay for: the more something costs, the better quality it is. As with many products, that is generally true with ceiling fans, but there are other factors. When you buy a ceiling fan you are paying for three things: 1. Quality and features 2. Design/style 3. Name recognition The most expensive fan may be the best quality, or it may be the most expensive design, or it may be the best known brand name. IXa. What makes a ceiling fan Energy Efficient? How do I consider this when choosing a fan? There are three factors: 1. How much air is moved 2. How much current is drawn 3. The quality and construction of the fan Obviously the most efficient ceiling fan would be that which has the best #1/#2 ratio. However #3 is also a very important factor in buying a ceiling fan, and just because a fan has the best ratio does not mean it moves the most air. A fan that draws very little power but moves very little air may be considered very efficient. Additionally, if the fan has a light kit, the light kit is much more crucial to energy consumption than the fan motor. Ceiling fans typically draw ~100 watts or less on the highest speed setting, however the typical four socket light kit draws 240 watts consistently. Much more important than finding the most efficient motor, in this case, is maximizing the efficiency of the light kit. Compact Fluorescent light bulbs are ideal for this purpose-- the same light kit will then draw 60 watts or less. X. Fan Operation: What speed and direction settings should be used? This is a very subjective topic, and for most it was probably answered by parts I & II above. There are a number of factors that vary by setting and situation-- fan location, ceiling height, fan model, and most importantly, what purpose is intended. A few suggestions that may or may not apply: 1. It is unlikely that a fan would be used on high except to create a significant breeze. When you wish to do so the fan would be used in the downdraft setting. Depending on how much of a breeze is wanted medium speed may also be acceptable. 2. For a gentle breeze and circulation, in most cases the fan would be used on low in the downdraft setting. 3. To destratify heat (and for circulation) the fan would be generally set to updraft mode in low or medium speed. Heat can also be recirculated with low speed in the downdraft mode, depending on which produces more of a notable breeze. XI. How effective are ceiling fans with heaters built in? The most important thing to remember about any electric heater is that they use a great amount of electricity. This includes ceiling fan heaters as well as space heaters, etc. They are available with a variety of different sizes and settings, but the average uses ~1000 watts. It is not wise to use an electric heater unless it is absolutely necessary, using a heater ceiling fan (for example) in conjunction with an effective furnace etc will NOT save energy. So it would be a fair assumption that you should only consider a heater ceiling fan in a situation where you would also consider an electric space heater or the like. XII. What is the use for a fan mounted outside, such as on a porch? What sort of fan is recommended? If a fan is going to be exposed to rain and snow and such, youll want to make sure it is sealed so water cannot get into electrical parts. If its not actually going to be getting wet, just somewhere exposed to changes in climate (a covered porch, etc) you generally look for a fan with a finish that wont rust and blades that wont warp. Many companies offer fans that are specifically rated for these situations. These fans will have Underwriters Laboratories certification for damp or wet locations. If a fan is going to be subjected to these conditions it is important that it is able to do so safely. XIII. Ceiling fan lights-- what options are available? Ceiling fans being used with light attachments have become more and more common as years progress. It is significantly easier to install a ceiling fan where there is an existing light fixture than where there is nothing, but if you are removing a light source you will need to replace it. As a result, the majority of ceiling fans sold include light kits already attached.
Why Do Ceiling Fans Have a Reversing Switch? What is the reason for having a reverse button on ceiling fans? Well "they" say that you cannot stand a draft during winter months, but that you can equalize the air temperature buy using your fan in the reverse direction. I always wondered why the older ceiling fans did not have a reverse button. Were the people who designed those fans, just too stupid to think about using reverse in winter? During winter, when you use the central heating system, the warm air coming out of the registers, in each room, will naturally rise and because the registers are up high already, the hot air will build at the ceiling level and gradually work its way down toward floor level. The heating unit runs until the temperature is comfortable at the lower levels of the rooms. But by the time this happens, it will be very hot at the ceiling level. Many BTUs are wasting heating the ceiling areas of the home, where we dont live our lives. But what if there was a way to get this hot air down off the ceiling, to the lower levels where we live. The heating unit would not need to work as long and the savings on our utility bill could be significant. AHH CEILING FANS! will bring this air down and mix the hot air with the cooler air at floor level. This mixing would basically equalize the temperature at floor and ceiling levels, which means that the heat would not be wasted keeping the ceilings warm. The heating unit would not run as much. The utility bill will be lower while the comfort level will remain the same. But then someone said that the draft created by the ceiling fans would be too much for winter months. So someone else said "well, lets just reverse the ceiling fans and let the air blow up until it hits the ceiling and then it will go horizontal in all directions until it hits the walls. Then it will come down vertically until it hits the floor. Now it will travel, at floor level, back in toward the center of the room and then back up to the ceiling fan. What a genius! Now everyone can use ceiling fans to equalize the temperature without feeling a draft in winter. Oh yea! So what happens when this warm air starts down the walls and hits furniture, bookshelves, etc? It will start a horizontal movement toward the center of the room. Now when it comes out past the obstruction, will it turn and fall toward the floor, where it can mix? If warm air falls instead of rising, then I guess it could. What happens when air from the ceiling fans hits the ceiling in a room with a sloped ceiling? If the ceiling fan is centered in the room, it would be basically half way up the slope. So wouldnt all the air go directly up the slope from where the ceiling fan is mounted? What about the other half of the room? What happens when the room is large? Will the force, coming down the walls, still be enough to get this warm air to the floor, especially when the ceiling is two stories high? What happens when ceiling fans are in a room with a two story high ceiling, which is open to the second floor level of the home? Wouldnt the warm air go off into the second level, instead of coming down to the floor and in this situation, wouldnt the ceiling fan steal the warm air from the first level and take it to the second floor, defeating the purpose for which it is being used? On the other hand, if you blow the air down, the hot air at the ceiling level will be forced down to floor level where it will move in all directions toward the outer walls of the room. The air can now mix and seek its own level. The hotter air will naturally rise to the ceiling level where it will be picked up by the fan to repeat the cycle. So wouldnt this be much more efficient than using reverse, especially in the scenario where the ceiling is two stories high and open to the second floor? But what about the draft? I say just run the ceiling fan at a low speed or the highest speed that you can tolerate and still be comfortable. Could reverse on ceiling fans be a marketing tool to sell fans in winter? You decide. But I do not think that the old folks overlooked something as important as this. I think that they used what was most efficient. I agree and my ceiling fans always blow down, winter and summer. And if you happen to have a room with the two story ceiling where the room is open to the second level, and where you notice the upstairs is always hot while the lower level is cold during winter, try using your ceiling fans in the down direction. You will not believe the difference!
Emerson Ceiling Fans - Built From The Finest Materials And Finishes Guaranteed To Match Any Decor! Emerson ceiling fans has had the distinction of being known as Americas Fan Company for over 110 years. With over 150 models and five collections, built from the finest materials and finishes guaranteed to match any décor, its easy to see why these ceiling fans are customer favorites. The Company The Emerson ceiling Fan Company opened its doors in 1890 in St. Louis, Missouri, and was originally known as the Emerson Electric Manufacturing Company. The company was started by two brothers, Charles and Alexander Meston, with John Emerson as their primary investor. The three men were visionaries and explored the uses for electricity as no one else of their time. A short two years later they were able to introduce the first electric fan and that was the beginning of the technological powerhouse that would eventually become a multibillion dollar success. Emerson K55XL Motor What good is a product that doesnt perform? With an Emerson fan, performance is never a question. The Emerson K55XL motor is the heart of every ceiling fan. It is a reliable, durable, quiet motor that draws less than one amp of power. Emerson ceiling fans outperform the competition by a mile. Emerson guarantees that outstanding performance is paired with options and style. Its array of products provides consumers with their choice of style. In addition, their accessories allow consumers to change blades, bulbs, and globes as desired. Emerson fans are truly designed with the consumers interests in mind. Energy Star Label More than half of all Emerson models carry the Energy Star certification label. Thus, customers can rest assured that they have purchased a ceiling fan that delivers the excellent performance for their consumer dollars. According to a utility company in California, it costs between 16 cents and 43 cents per hour to run air conditioning. The same company determined that it costs a mere penny per hour to run a ceiling fan! Reduction in cooling costs The average person thinks ceiling fans are for cooling purposes, but an Emerson fan owner knows better! The truth is ceiling fans provide year-round climate control which equals year-round savings. In warmer climates and seasons, a ceiling fan circulating the air in a counter-clockwise direction, can make a room feel up to seven degrees cooler which translates into an almost 40% reduction in cooling costs. In Winter and Summer During winter and in colder climates, the Emerson ceiling fan can be reversed to circulate the warm air that is typically trapped near the ceiling and wasted. The outcome is warmer air flow, even temperature from ceiling to floor and a healthy reduction in heating costs. Emerson fans are exactly what are needed with prices on the rise. Emerson fans are beautiful, practical and economical additions to any home. Their style makes them suitable for any décor, in any room, and their functionality makes them a necessity for energy conscious consumers in every climate. Backed by one of the most extensive warranties in the business, theres a reason Emerson ceiling fans are called Americas Fan Company. Dont you think its time to find out why firsthand?
Ceiling Fans Leading the Future The Current Market Ceiling fans have been gaining in popularity for the past 20 years. What started as a cost effective alternative to air conditioning to cool your living room bedroom or kitchen has grown into a multi-billion dollar industry. Ceiling fans are now offered in many styles and price ranges from the very basic to high end designer styles. They can cost from less than one hundred to several thousand dollars and are being made to suit any taste or preference. The ceiling fan manufacturing industry has evolved to provide very high quality fans at reasonable costs and has built the consumer market for these products. This led to explosive growth in the sales of fans through the home improvement retailers like Home Depot, Lowes and others. The days of showroom sales for the mid to high level fans may be in for a change due the marketing efforts of these industry giants. Marketing data suggests that approximately 70% of all ceiling fans are being installed by the homeowner within 2 years of occupying their home. They are replacing the existing lighting fixtures with higher grade fixtures and ceiling fans in the bedroom and kitchen area. The living room is also a popular choice for fixture replacement with ceiling fan and lighting kit combinations being installed in greater numbers. The consumer is faced with so many choices in the market today that it can be a bewildering experience for todays consumer. The average purchaser is going down to their favorite home improvement store to choose their new fan or lighting fixture or even making their choice on the internet. They come to a lighting specialty store or showroom only after being overwhelmed by the choices in the home improvement stores aisles which provide little if any service or assistance. The choice of fans today is greater than at any time in past 5 to 10 years. Many of the major brands are also selling products in the home improvement market. Companies like Hunter are distributing several models in Home Depot this trend is expected to increase as they gain market share. Changing Technology Numerous manufacturers have been paying attention to this trend in the consumer market and are providing fans that meet the needs of todays consumer. The ease of assembly and use of pre-assembled components speed the installation of their products. Westinghouse Lighting Corporation has a line of fans that captures all of these needs and they claim can be installed in 15 minutes on average. The weak link in all of these improvements is the ceiling box itself. This is the component that the fan is attached to and must bear the static and dynamic loads of the fans operation. It also houses the electrical wiring for the fan. This utilitarian component has been under going improvement for the past 10 years or more to make its installation quicker, cheaper and easier than the traditional metal box of yesterday. The electrical contractor of today is using products that increase his productivity and maximize the potential profit of his labor. They have a large choice of nail-on products that already have the fasteners attached to the ceiling box and all they have to do is hold it in place and nail or screw it into a joist or truss for it to be secured. Many of these boxes are thermoplastics which are inexpensive and easy to manufacture. They also have the added advantage of not needing to be electrically grounded so this saves the additional labor that metal boxes require. This fact is not lost on the ceiling box manufacturers that are producing ceiling, outlet and junction boxes that are quick to install and are made of plastics that require less and less labor to install properly. This has gotten to the point that there is now a lighting box that only needs to be pushed onto a wooden stud for it to be secured; no fasteners are needed at all! The ceiling fan manufacturers however may not be keeping pace with the trend in ceiling box installation practices. They advise the consumer of their products to reinforce or replace the existing fixture with a fan-rated ceiling box which is prudent, though are the consumers heeding their installation directives? The installation instructions for many of the fans available today show a metal type box that has screws going through the box and into blocking above the box. This is not what is installed in most of the newer construction homes which use the labor saving nail-on products. As a general rule builders and contractors do not provide blocking above the ceiling box with a nail-on product as the added material & labor is not cost effective. The average nail-on plastic ceiling box is rated for only supporting a 35 pound static load. They are also not fan-rated. This requires that the ceiling box be replaced with a fan-rated box before the installation of a ceiling fan. Fan-rated boxes are capable of holding 70 pound loads and are rated for this application. This is easier said than done! The nail-on products do not lend themselves to be reinforced easily since labor savings have also been applied to the construction of homes themselves. In many circumstance the average home does not have an attic, only a narrow crawl space between the trusses is provided. This combined with blow-in insulation makes the location of the ceiling box difficult if not impossible when a fan is to be hung on an upper floor. For installation of a ceiling fan between floors leaves little choice for this task since it cannot be accessed easily from above or below the ceiling since the upper floor is directly above the ceiling box. Cutting a hole in the floor or knocking out the ceiling is not prudent just to place blocking above a ceiling box. Medallions are available but the added expense, labor and time can be prohibitive, especially if the medallion is painted to match the ceiling. The brace type of products that are sold today are an alternative though they work better in theory than in practice as the old ceiling box needs to be removed before they can be installed. Home Depot has a web page devoted to this process which they claim can take ½ a day to complete. A Better Way Following the trends used in the construction methods of todays homes has led to the development of a new and simple method to reinforce an existing ceiling box to that of a fan-rated box that is consumer friendly. Access is gained through the ceiling box itself with a small bracket being utilized in what is in most cases is wasted space within the ceiling box itself. Two fasteners are driven through the ceiling box and into the joist or truss with the bracket being firmly held in position. This bracket has been shown by independent testing by a leading product testing laboratory to allow the ceiling box to sustain very large dynamic loads. This testing revealed that ordinary thermoplastic ceiling boxes that are reinforced in this manner are capable of sustaining loads that are factors above the requirements of NEC (314.27D & 422.18). These NEC building codes apply to the installation of ceiling fans and fan-rated ceiling boxes. Another added feature is that this product installs in only 2 minutes or less with common hand tools and allows the installation of a ceiling fan to be accomplished in less than an hour from start to finish. If the Westinghouse fans were to be used with this product it could be done in 17 minutes or less! The product can also be also used with metal boxes after 2 holes have been drilled in the ceiling box. Failure modes during product testing revealed that the test plate was being pulled off of the ceiling box. The ceiling box is left intact and firmly secured to the simulated test truss. A grounding lug and screw is provided on the bracket to facilitate grounding of the pierced ceiling box to alleviate any concerns regarding an energized component outside of the ceiling box. This product is manufactured in the United States by EE Products Inc. as FAN-EZE under the following U.S. Patents, 6,881,900, 6,909,045, & 6,965,077 and is available for distribution by retail and wholesale sales outlets. Further information regarding the products can be found at http://www.eeproductsinc.com or contacting the company directly at 801-254-5144.
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