9 square meter room, I have it on for 3-4 hours and it doesn't heat it at all. Don't buy it, it does nothing. It's awful, I'm giving it away.

Excellent device. Its main advantage is that it often turns off due to the thermostat; however, the body remains warm and emits heat while not consuming electricity. As time goes by, it turns on less and less; I was surprised by the energy efficiency. It can happen that a whole hour passes and it turns on for at most 10 minutes. Other types of devices, like convector heaters with thermostats, turn off much less frequently and, of course, when they turn off, they do not emit heat, unlike the radiator body, which is a significant benefit