Air conditioners are placed at the top as hot air is light it rises up. So air conditioners are placed at the top to help cool the hot air.
For example:
The hot air which is up becomes cool as you switch on your air conditioner. Then the cold air is heavy so it comes down and then again the hot air goes up and the same process is carried throughout.
Most of the old fashioned portable air conditioners need to placed near a window, but now the portable air conditioners could be placed anywhere in the house.
Yes, there are free standing air conditioners as well as ductless air conditioners available. The free standing air conditioners are portable and can be placed in any area yor home. Ductless air conditioning units are placed outside the home much like a central air conditioning unit.
http://ezinearticles.com/?Central-Air-Conditioners---5-Major-Brands&id=1987535
Hot air rises but not cold air.
because. . . # cold air is heavy and so it sinks # hot air is light so it rises # they put it at the top so the whole building is cool
because. . . # cold air is heavy and so it sinks # hot air is light so it rises # they put it at the top so the whole building is cool
Different types of home air conditioners are: Central Air Conditioners Split System Air Conditioners Packaged Central air conditioners Portable air conditioners Ductless air conditioners and, Evaporation Coolers
air-conditions are usually placed at a higher level rather than at a lower level.
When was Air Conditioners invented
hot air rises so the air con will cool down the air above so air cons will be placed at a higher level
Air conditioners are typically installed on the top to take advantage of the principle that cool air sinks and warm air rises. Placing the AC unit high up allows for better distribution of cool air throughout the room. Room heaters, on the other hand, are placed on the floor to provide warmth at ground level where occupants are more likely to feel the heat.
This is because the cold air from the air conditioner , being heavier, comes down to replace the relatively lighter warm air of the room.