Get total control of your indoor environment with the NewAir AC-14100H ultra versatile portable air conditioner and heater. This powerful 14,000 BTU unit is designed for large spaces – up to 525 square feet – and uses modern heat pump technology to provide both heating and cooling for year-round comfort. Enjoy extra-efficient operation in hot, dry weather thanks to the unique Energy Efficiency Boosting Function, which adds water to the compressor system to reduce energy consumption. Self-evaporative technology makes this unit bucket-free – minimal draining required only in the most humid weather. In the winter, this unit gives 50% more heat than electric space heaters with the same energy use. Features include push-button controls, LED temperature display, automatic operation, 24-hour programmable timer, sleep mode. Ships with remote control, activated carbon filter, 59” exhaust hose and extendable window kit for easy installation in windows up to 50”.