Buy a different space heater!
This space heater worked quite well for about 3 months. Then it stopped working so well. It now works intermittently, but there is no clear indication when it's going to work and when it's not. I always have it in the same plug, the same floor, never tilted, and never in all night. But it only works intermittently, and even when it works, it sometimes clicks off for now reason. The red light is always on, so I know it draws enough power.Just note that I'm not the first person to write a review that says this, and I made the mistake of ignoring the others. Don't. Just buy a different space heater.