Window air conditioner is sometimes referred to as room air conditioner as well. It is the simplest form of an air conditioning system and is mounted on windows or walls. It is a single unit that is assembled in a casing where all the components are located. The evaporator side is located facing the room for cooling of the space and the condenser side outdoor for heat rejection. There is an insulated partition separating this two sides within the same casing. Window air conditioners are useful for cooling down single rooms during the warm months. They can also be used to supplement a central cooling unit in rooms that tend to get a little warmer than others, or in places that the central AC doesn’t quite reach. Ensuring that there are no “hot spots” in your home can not only make it more comfortable, but also help with energy efficiency. Easy to install and maintain, LG’s window air conditioners cool the air while leaving behind a lighter carbon footprint, enabling you to enjoy clean and cold air while worrying less about the environment or electricity bill.