This quiet, high-efficiency heater fan can be used to increase the comfort level in a room in the home or office. This electric heater fan is stable, powerful and compact, making it a convenient addition to winter. Portable Heater Fan, CZ40: Quiet high-efficiency Comfort Zone heater fan. Stable. Powerful and compact. Adjustable thermostat. High-impact flame-retardant plastic cabinet. Stay-cool body with molded handle. Enclosed coil wire heating element. Safety overheat protection system. On/off indicator light. Polarized 2-prong cord set. 4 position rotary switch controls. 750W or 1500W.