18,000 BTU Single-Zone Outdoor Inverter Heat Pump, Volts: 208-230, Hertz: 60, Phase: 1, Department Of Energy Guide SEER2: 19, EER2: 10.5, Refrigerant: R-410A, Connection Size: 1/4"x1/2", Connection Type: Flare, Metering Device: EEV, Max. Cooling BTU: 18,000, Max. Heating BTU: 20,900, Factory Charge: 2 lbs 10 oz, Dimensions: 21-1/2''H x 31-1/4''W x 11-1/6''D, Weight: 81 Lbs, Remote Included: No ***Indoor Unit #MSZ-HM18NA (Not Included)***