LX-140 Portable Air Conditioner with Heat Pump and Four in one technology - Fan, Heater, Dehumidifier and A/C. No water tank to empty. In humid environments, manual drain may be needed every now and then. Smart chip technology, digital display and remote control. 24 hours programmable timer. Could be used in one hose or 2 hoses. When used with one hose the opening at the back of the unit should be changed for a grill and the intake port should be sealed.