When it comes to cooling the inside of your home, there are several types of systems to choose from. One is the split central AC system. With this style, a metal cabinet outside the home houses the condenser and compressor. Inside the home, a cabinet contains the evaporator. Many times, the cabinet inside of the home will also have a heat pump installed.
An advantage to this type of cooling system is that it can also be installed with a heat pump or furnace component. Also, many split systems on the market today are designed to be energy efficient, with SEER ratings of 13-23.
If the time has come for you to think about replacing your air conditioner, there are several valuable resources on the web, including the Department of Energy’s site.