Climate Control and Comfort Systems
Thanks to technology, houses have evolved light years beyond their earliest task of providing simple shelter. They have become total environments that sustain, refresh and provide us with a high level of healthful comfort. From air conditioners to zone heating systems, a wide variety of machines and systems equip today’s homes for these responsibilities.
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There are two important facts you should know about heat movement. First, heat seeks a balance. Applied to a home’s air temperature, this means warm air always moves from a warm place to a colder one and vice versa; the greater the difference, the faster the flow of heat. Second, heated air rises. Unless it’s stirred up, the air in a room tends to stratify-warm air gathers near the ceiling, cool air moves toward the floor.
Source:http://www.hometips.com/hyhw/comfort/comfort.html