You should know why you are buying this little device: if it is to create a tropical area in the square of 1,50m x 1,50m in which you find yourself, it's perfect. And in this role it consumes only a quarter of what you require a traditional electric heating, it is true with a thermostat, but for the price we must not too angry either. One star less because it lacks a rear dust filter, be it basic. So beware because ceramics are sensitive to dust, it will be necessary to monitor the well on this side there.