Abstract: A surface heating element for placement on a sub-floor and for making a heatable hollow space floor includes a plastic sheet having deep drawn protuberances forming spacers strengthened by ceramic support bodies or by a hardened finish material. The same sheet, or a second sheet connected to it, forms a carrier plate for carrying hot water tubes or other heating elements. The carrier plate may include deep drawn dogs, extending in a direction opposite to the protuberances, for holding the heating elements to the carrier plate; and a hardened finish material may be used to embed the heating elements.