LG 12,000 BTU 230V Window-Mounted AIR Conditioner with 11,200 BTU Heat Function Energy efficiency Ratio (EER): 11.3 (cooling) Special 230V electrical outlet required (unit will not work with a standard 115V outlet) 12,000 BTU cooling for rooms up to 550 sq. Ft 11,200 BTU heating for Approx. 450 sq. Ft 2 cooling speeds/2 heating speeds/2 fan speeds