I have this space heater in my office, which gets cold during the winter months. It has four settings, one of which is simply a fan (which serves as white noise when I want to block out surrounding sounds) and three heat settings. Each setting comes with a thermostat, and once the heater heats the room to a certain temperature it automatically turns itself off. The fan is a little loud, but it's powerful enough to spread the heat around so it's not hotter in one area of the room than another. Performance Although I use this in a relatively small space, I've only ever used the lowest setting. At higher settings I believe this would heat a much larger space. Design The heater is small and compact, and will work in any size room. Safety This heater will automatically turn off if it tips over, which is a great safety feature.