Built by LAKES, a heat pump world leader, our Lakes heat pump offers great comfort all year long and an important reduction of your electricity bill. The Lakes heat pump and wall air conditioning system provide comfort to your home in the summer with the air conditioning option and in winter with the heat mode option. This very quiet unit has an LED remote control. The built in filter prevents the bacteria and moisture from getting inside your home, while the dehumidifier feature keep the rooms well ventilated. The 9000 BTU unit is correct to provide AC and heat to a 750 square feet room. We always recommend professional installation to take full advantage of the product and maintain the warranty.