— by a variety of the room, so in rooms where a person spends a minimum period of time, they install heating systems based on a single -fat cable. They do not differ from two -core wires, but have a small magnetic field and is slightly cheaper at a price. In the rooms where a person spends the main part of the time, put a two -core cable, its advantages are that he has a minimum magnetic field. But such heating is a little more expensive.
