A heating device having a layer containing electrically conductive plastic. The layer exhibits adhesive characteristics at least in some sections on at least one side. A heatable object equipped with a heating device of this type. The layer containing electrically conductive plastic is connected to at least one component of an object. A. radiant heating system including a support and a heating layer containing electrically conductive plastic, whereby the heating layer is formed by a flexible film and the support is also flexible. Methods to produce such products and apparatus.