The appearance of panel radiators suggests that the main element of heating, the panel, which is cooked with a steel sheets located vertically, with the inner coolant. So that the heat transfer is larger, the ribs are welded to the back of the panel, in the form of the letter P. The height and width of the panels is diverse and the reaction to temperature change, fast. There is also a lack of such panels, they are very sensitive to hydrouches, poorly protected from corrosion and a small volume of pressure. The top panel is very difficult to clean from dust.