There are three basic types of AC systems that serve different purposes. They include the window unit, central AC, and heat pump. The clip “ Window units are limited in size. In addition, the systems have limitations in how long they can cool a room before needing to be turned off or unplugged for a while. Central AC units cool the entire house through one or more large vents. You can install these systems in a master bedroom, a living room, or an office. Heat pumps are also known as reverse cycle systems. Heat pumps work all year round. They use electricity to move heat from one place to another. The units are also quieter than window units. It would be best to choose the AC according to the size of your house’s windows and doors and the number of rooms that need cooling. A good-sized unit will cool a room quickly without leaving you with a big power bill at the end of the month. Make sure any new system is Energy Star rated. The Energy Star label shows that an appliance meets standards for energy efficiency. Ensure you consult a reputed heating and air conditioning company when choosing an AC system. The professionals in these firms will help you decide on a unit that suits your home. . 