The Mill AV900WIFI is a heater that you operate over the telephone, even when you are not at home. This makes it possible to turn up the heating just before you get home. You can easily heat rooms up to 15 square meters and if you have more of these heaters, you can control each room separately via 1 app. In addition, it is possible to set 3 programs, for example if you spend a lot of time during the day. As soon as the stove detects a sudden drop in temperature, it switches itself off automatically. Then there is probably a window open consciously and that is how you save energy costs. You hang the heater horizontally on your wall.