The invention relates to a heating element for a room in a building having a flat support which includes carbon nanotubes and a plurality of contacts, wherein the carbon nanotubes can be excited to infrared emission by connecting an electrical voltage to the contacts. The invention further relates to a method for producing such heating element, the support thereof being attached to a wall of the room. In order to simplify the heating element, according to the invention the support includes a flexible textile material in which the contacts are embedded and to which the carbon nanotubes are applied in an aqueous dispersion and the water is evaporated.