The LG Electronics LW5200ER is an efficient 5,200-Btu window air conditioner that is well suited for small bedrooms and home offices.

While not at the top of its class in terms of energy efficiency with an EER just below 11 (10.8), this model is Energy Star qualified and has several other features that make it worth noting. There is an easy-to-set thermostat that allows you to set any temperature between 60 and 86 degrees Fahrenheit with the push of a button. This unit also the ability to run this model in fan-only or dehumidifying-only modes.

An energy-saver mode instructs the fan to stop whenever the compressor stops, and automatically turns on again 3 minutes later to see if cooling is required. The timer allows you to quickly set start and stop times of up to 12 hours with the push of a single button. The LW5200ER is also environmentally friendly, with plasma replacing freon in the heat exchanger.

The LG Electronics LW5200ER air conditioner requires only 115 volts of electricity through a standard 125V/15A parallel prong plug, so it may be installed in any outlet. The unit weighs only 48 pounds, making it easy to install alone.

Warranty
2 years, parts and labor; 5 years, compressor