The Vornado whole room heater uses Vortex heat circulation technology to uniformly distribute warm air throughout the room. It generates up to 5,120 BTU of heat. This electric room heater is fan driven. A control knob and built-in thermostat let you effortlessly set your desired heat setting. Safety features include a grill guard, a tip-over switch and a cool-touch surface. This portable room heater operates quietly. Its ideal for rooms up to 300 square feet.