18,000 BTU Dual Zone Ductless Mini Split AC – Heat Pump: 9000×2

Mini Ductless Split Air Conditioner 36000 BTU. With a 18000 BTU total Cool / Heat Capacity, theThermocore T423D-H224-9+9 Ceiling Cassette Energy Star mini split air conditioner can cool or heat 2 separate zones of 9000 & 9000 BTU for a total coverage area of 800 ft² (400 ft² + 400 ft²).