The Harison HWD range of swimming pool dehumidifier offers a comprehensive choice for small to large commercial pools. All incorporate condensing technology to provide energy efficient operation. In-room units are attractively designed and wall-mounted. They draw moist air in the bottom and release dry air out of the top. A similar range is available to be located in an adjacent room. Air is drawn from the pool area via ducting, dried by the dehumidifier and then supplied back to the room. Floor standing systems offer high performance dehumidification as well as electric heating options that can replace the need for space heating. These can also introduce fresh air from outside as well as vent exhaust air. Heat recovery systems maximise energy efficiency and can recover heat from the room or the dehumidification process back to the supply air. A wide range standard options are offered across the ranges to meet the requirements of any indoor pool area.