Värmeelement för uppvärmning av en yta och kylelement för kylning av e n yta

摘要

Heating element (1) for surface heating, having a cavity (3) for transporting the heat transfer medium and a jacket (2), made from plastic and/or metal, enclosing the cavity, characterised in that the jacket is constructed in such a way that its outer surface assumes different temperatures even when the heat transfer medium passes through in a uniform fashion. The heating element can in principle also be used to cool surfaces, if a cooling medium is used instead of the heat transfer medium.