Perfect Aire 1PAMSH18-SZ0-15 Single-Zone Inverter Mini-Split Outdoor Unit, Requires Indoor Unit Model #1PAMSH18-SZW-15 for Full System 18,000 BTU Cooling/Heating. This outdoor unit requires indoor unit (model #1PAMSH18-SZW-15) to complete full system! Perfect Aire single-zone ductless mini-split systems provide maximum comfort, efficiency and control for single space environments. Units are manufactured from the highest-quality materials to ensure efficiency and dependability! Unit has built-in sensor in the remote control, effectively allowing the thermostat to be located anywhere in the room. Refrigerant leakage detection (indoor unit will sound an alarm when the outdoor unit detects refrigerant leakage). Golden-fin hydrophilic condenser improves the heating efficiency by accelerating the defrosting process (anticorrosive golden coating can withstand salty air, rain and other corrosive elements). Ductless mini-split-system heat pumps make good additions to houses without forced air heating systems such as; hot water heat, radiant panels and space heaters. Inverter technology saves energy and operates more quietly than a regular compressor. Full system specifications; power supply 208-230V, BTU 18,000 cooling capacity, SEER (Btu/w)-15, EER (Btu/w)-9, HSPF4 (Btu/w)-8. 2, dehumidification (Pts/Hour) 3. 8, BTU 18,000 heating capacity, and 8. 0-heating Amps. Today's consumer desires more, expects more and demands more when spending their disposable income and Perfect Aire delivers on all counts. When you need the best, look no further than Perfect Aire! Quality products and unmatched customer service are the key drivers behind Perfect Aire. From dehumidifiers, humidifiers, and an assortment of portable, window, and through the wall air conditioning units, Perfect Aire offers products suited to a wide range of needs. Should you need any support with our products we are more than happy to assist you, please contact us at 877-365-6274 or email supportatperfectaire. us.