This heater got good reviews on consumers reports. It was listed the highest for space heating. This heater is now 1 foot from my legs and the air that blows out of it is warm, not hot. This heater is meant for a room that is heater or is not very cold. I am working in a 40 degree room and I need heat in my personal space. This heater does not do that. If I leave it for 7 hours it will eventually "warm" the room. The problem is I have to turn it off at night and when I go out to work in the morning I dont want to wait 7 hours.