A radiant heating system for vehicular use which is attached to an interior member of a passenger compartment, has a heating means for generating radiant heat, a protective member which is arranged at a passenger compartment side from the heating means and which prevents a driver from contacting the heating means, and supporting members which support the protective member, wherein the front surface of the protective member is provided with a plurality of projecting members, the supporting members are provided so as to form an air space at an opposite side of the protective member from the compartment side, the protective member flexes when the driver pushes against one of the projecting members, projecting members which adjoin the pushed member tilt to the pushed member side, and the distances between the front ends of the pushed projecting member and the adjoining projecting members become smaller.