Save 15% off these Mini-Split Air Conditioners at Cozeware when you use our code BRADS15 at checkout. We found this 12,000 BTU 20 SEER2 230V Mini-Split Air Conditioner that falls from $600 to $520 to $510 with the code. Amazon charges $580 . It's energy efficient, can be controlled by remote or via the app, and doubles as a heater that covers up to a 750 sq ft space. Choose from a variety of models to find one that suits your needs. Shipping is free, and you can return it for 30 days. Plus, a 7-year warranty comes included.