LG LW2516ER. Brand New1 Year Parts and Labor Warranty. . The LG LW2516ER is a 24,500 BTU 230V Window-Mounted Air Conditioner with remote control is perfect for cooling a room up to 1560 square feet. You will cool a lot and save even more with this unit's energy saver function, 24-hour on/off timer and a 10.3 Energy Efficiency Ratio. With its stylish full-function remote, you can even get your cool on from across the room. Plus, LG's patented Gold Fin anti-corrosion coating provides a protective shield so the unit lasts longer.. . LW2516ER