The GREE Rio High-Efficiency Ductless Mini-Split Heat Pump system is compact quiet & provides unmatched comfort in any room. This 24,000 BTU system includes an indoor cabinet outdoor compressor and offers a great 16 SEER. This single-zone system is powerful enough to cool a 1,000 sqft space. In addition the GREE Rio provides quiet comfort & improved efficiency by eliminating heat loss inefficiencies of conventional central air conditioning systems. Features & Benefits : High-Efficiency Inverter TechnologyEco-friendly R410A Refrigerant, Low Ambient Cooling 5°F (208-230V Systems Only), Intelligent Defrost, Intelligent Pre-Heating, Comfortable Sleep ModeDry Anti-Mildew DesignTimer. BTUs needed : (BTU ratings are estimates only based on 10ft ceilings with great lack of insulation heavy sun excessively hot regions & tall ceilings)9,000 BTU - 350 sqft | 12,000 BTU - 500 sqft | 18,000 BTU - 750 sqft | 24,000 BTU - 1,000 sqft | 30,000 BTU - 1,250 sqft | 36,000 BTU - 1,500 sqft. Our customer support team will provide assistance should you ever need to file a warranty claim with the manufacturer. Please be aware that only systems that are installed by a licensed HVAC contractor are backed by the warranty. Proof of licensed installation is required. The receipt/invoice from the contractor should be sufficient.