The Haier 14000 BTU dual-hose portable air conditioner with 10000 BTU heat mode keeps you cool when it is hot and warm when it is chilly so you are always comfortable. Designed for a room up to 500 square feet it has four modes: Cool for cooling the air Heat for heating the air Fan to circulate the air and Dehumidify to reduce humidity. Choose from 3 cooling speeds (high medium or low) 3 heating speeds (high medium and low) and 3 fan speeds (high medium or low). Quiet operation (only 50 dBA on low) helps you get a good night's sleep. The easy-to-use electronic control panel includes a 24-hour on/off timer and digital thermostat plus the full-function remote control with on-board storage allows you to control your comfort from anywhere in the room. This unit is easily portable with multi-directional caster wheels so you can use it where you need it when you need it.