Published at Wednesday, April 04th, 2018 - 03:04:11 AM. Ceiling Fan. By John.
Ceiling Fan Ratings - How to Choose the Best Ceiling Fan for Your Needs? A ceiling fan can be used year round-to cool off your home in the warmer months and to circulate the warm air to keep your home livable in the winter months. Another good reason to buy a fan is to save some money on your utility bills-ceiling fans cut down a great deal on heating and cooling costs year round. When choosing a ceiling fan for your home it is important to develop a rating system for yourself and then decide which fan to buy by the ceiling fan ratings you have assigned. When deciding on your ceiling fan ratings, you should make a list of qualities you want in a fan. You should think about the look of the fan, the features of the fan, how the fan is made, etc. Size The size of the fan is very important. You dont want to get too big of a fan for the room and you definitely dont want a fan that is too small for the room. A good rule of thumb is that a one hundred foot square room, the fan should have blades of thirty six inches. If the room is between one hundred fifty and two hundred twenty five square feet should have fan blades that are forty eight inches long. Type Low ceilings require a different type of fan than a high ceiling fan. High ceilings require the fan to have down rods because down rods will circulate the air to the living space. Low ceilings should be fitted with a fan that is flush mount or hugger. A sloped ceiling needs to have an angled mount and you need to make sure that, no matter what type of fan you get, that the blades are at least seven feet up. Components You want a fan with high quality fan components. For example, the die cast motor housings are far better than stamped motor housings. This is because the die cast motor housings reduce the fans noise and keep the fan stable. You will also want your fan to have bearings that are permanently lubricated and it should have an oil reservoir that is sealed. Pitch Pitch refers to the angle at which the blades sit on the fan. Typically, the pitch of the fans blades will range from eight up to fifteen degrees. Air moves far better under a fan with a high pitched blade. Special Features Do you want your ceiling fan to have room lights? Do you want decorative blades that you can change out to change the look of the room? These special features will be a prominent part of your ceiling fan ratings. After you have shopped around, compare your ceiling fan ratings. Obviously the fan with the highest rating should win-but that could also depend on how heavily you weigh each category. Once you have compared the ratings you will be set to buy the perfect ceiling fan for your home.
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!
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