The radiator warms our large room well, however can't be used on a timer switch so has to be manually turned on each time. There is a countdown timer which allows it to come on in a certain number of hours, but it doesn't turn it off again. There is an option when you turn it on to keep it on for X hours so this is the setting we use. It's not the radiator for us due to the inconveniences so we will be looking to replace it in the New Year. It's overpriced for the lack of functionality.