ComfortAire RAH183G 18,000 BTU Window Air Conditioner Heater With Energy Star Rating EnergyGuide Information - Capacity: 17,300 BTUs; EER: 9.0; Estimated Yearly Operation Cost: $154 Easy-access, slide-out, washable filter Electronic controls with full feature remote control Minimum Window Width: 26 in. Maximum Window Width: 38.1 in. 5 Modes: Cool, Heat, Fan, Dry and Auto