The Optima Series 12000 btu mini split sets the standard for premium, all-season comfort in large residential spaces (up to 550 sq. ft.). As an Energy Star certified unit with a 24 SEER2 rating, it's not only incredibly efficient but also eligible for potential government rebates. Its high-performance heat pump provides steadfast warmth in severe winter conditions down to -13°F. Control your climate from anywhere via WiFi, enjoy the whisper-quiet 30 dBa operation, and rest easy with the confidence of a lifetime warranty.