PerfectAire 3PACH12000 12,000/11,600 BTU Window Air Conditioner with Electric Heater, 450-550 Sq. Ft. Coverage Adjustable temperature settings that range 62F - 86F (17C - 30C); heats and cools areas between 300-350 sq. ft. Electric heater is 3,500 BTU 3-speeds in both cool and fan mode; 1 speed in heat mode Full function remote control with Follow Me portable thermostat technology for total room coverage Front-mounted, tilt-out air filter access for easing cleaning