arctic wind 10 000 btu 115 volt window midea 5 000 btu 150 sq ft mechanical midea 5 000 btu 150 sq ft window air midea 5 000 btu 150 sq ft mechanical lg 8 000 btu 115v window mounted air koldfront wac12001w 12000 btu 208 230v midea 5 000 btu 8 000 btu ashrae 115v