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| Zoning Systems |
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NewAirFilters.com favors and is a huge advocate of zoning systems, especially in residential applications. Think about it this way. Can you say you're comfortable in every room in your home at any time of the day or night? Probably not! This is because your system thermostat only can sense the temperature in one room at a time. Now say that first thing in the morning the sun comes in through the eastern windows in you master bedroom, which has some rather large windows which face East. Let's also assume that system's thermostat is also located in the master bedroom. As the sun rises, it will warm your master bedroom quite well. And if it's summertime, the air conditioning will likely turn on to meet the demand. Now let's look at the other bedrooms that are also served by that system, but are located on the North side of the house and have very few windows. Possibly some rooms used by some children or weekend guests. As the air conditioning cools the entire area to meet the demand of the master bedroom, now we are left with the other bedrooms dropping drastically in temperature and ending up quite cold.
With a zoning system which uses modulating dampers, you can actually maintain a constant temperature in each of those bedrooms. Because a zoning system utilizes a thermostat in each zone, or bedroom in this case, the system can actually sense the temperature in each of the rooms. Thus, the brain of the zoning system can open and close each electric damper and allow only the air needed in that room to make it comfortable.
Zoning a house is done in the name of comfort. Some people will actually claim that because you can condition certain areas of a house instead of the whole structure at once, you may actually save in utility costs. While in theory this may be true, one should not buy a zoning system for this reason. Zoning systems will keep a constant temperature in each room in your home at every time of the day.
Be sure and ask your H.V.A.C. contractor which zoning systems he prefers. In our opinion, the best zoning systems work in conjunction with a variable-speed furnace or blower and modulates according to how many zones require conditioning.
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