Meanwhile, already three devices of the brand in different places in use and all run to the fullest satisfaction. Soon I'm going to order two more. Some write that they would not heat large spaces. That is only partly true. In large rooms, two or three of the devices you have, of course, spread in space. One does well with other radiators that. I control the wireless switch sockets FS20 ST-3 and remote Wireless thermostat to share. The total output can then be distributed to the individual heaters. So it's not necessary to have all three run on 1500 watts. A great thing for subsequent installation. And at night you can thus reduce the temperature and save energy.