Aire Acondicionado Trane – Ducts.

One of the most important systems in your home, though it's hidden beneath your feet or above your head, may be wasting too much money you pay in energy. The duct system (a network of branching tubes that go through walls, floors and ceilings) that carry air from the boiler and central air conditioning to all rooms of the house. The ducts are made of sheet metal, fiberglass and other materials. 

Unfortunately, many duct systems are poorly insulated or not insulated incorrectly. Ducts that leak heated air into unheated spaces can add hundreds of dollars your heating and air conditioning. Insulating ducts that are in unconditioned spaces is usually very effective and saves energy costs. If you are buying a new duct system, consider one that comes with insulation already installed. 

Sealing your ducts to prevent leaks is even more important if the ducts are located in unconditioned areas such as attics or crawl spaces ducts and pipes. If the supply ducts are leaking, heated or cooled air can escape through unsealed joints and lost. In addition, unconditioned air can again return ducts through unsealed joints. In the summer, hot attic air can accumulate and thus, the load on the air conditioning. In the winter, your furnace will have to work longer to keep your house at a comfortable level of temperature. Either way, your energy losses cost you money.