![]() The blower in a central air system turns over the entire volume of household air multiple times every day. In addition to conveying coolness to every room, the A/C functions as a whole-house filtration system as well. Indoor air quality is another upside to adding central air conditioning. Living with a noisy compressor and fan mounted in a window unit only a few feet from where you’re sitting or sleeping is never as quiet as a central system, where the loud components are exiled to remote locations like the attic and backyard. After all, who would want a view of Baltimore’s skyline at night or Northern Virginia’s idyllic countryside during the day blocked by a window unit? ![]() They’re bulky, block the outdoor view and reduce available light. In addition, cooling individual rooms with multiple window units is more energy-expensive than running a single central air conditioner, particularly when you consider the substantial advances in efficiency available from new central systems today.Īesthetics is another a drawback of window units. In the midst of a hot, mid-Atlantic summer, residents find themselves increasingly restricted to these “islands” of coolness while the rest of the uncooled house remains stuck in the uncomfortable zone. Window units address comfort issues in single rooms or small enclosed areas only. There are solid reasons why adding central air conditioning is the most viable, whole-house option for bringing cool comfort to an existing home. ![]() In new home construction, it’s not even close: Nationally, more than 90 percent of new houses are now built with central air already installed. Here in the East, more than half of those have either central air conditioning or some combination of central and window units. ![]() In fact, while air conditioning was installed in just over 60 percent of homes as recently as the early 1990s, today about 87 percent of existing U.S. If you’re thinking about adding central air conditioning to an existing house, statistics show you’ve got a lot of company. ![]()
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