Heating, venting and air conditioning, or H-V-A-C, are the systems that heat and cool your home. Whether you have a furnace or boiler, central air conditioner, or a heat pump, you have an H-V-A-C system. This system also includes the H-V-AC distribution system, which through a series of ducts, pipes and radiators, delivers heat and conditioned air into your home. The three most common heating systems are forced air, circulating hot water, and steam. One new trend to maximize comfort and energy efficiency is 'zoned' systems, Which permit selected areas of your home to be heated or cooled independently of each other. Consult a plumbing contractor in your area for more information.
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