Abstract: A radiant heater system with a heat-radiating tubular conduit and a reflector for reflecting heat radiated by the conduit. The tubular conduit is supported along its length by spaced support structures. The reflector is disposed between and spaced from two successive ones of the support structures by attachment assemblies secured to and carried by the conduit and that permit full rotational adjustment of the reflector about the longitudinal axis of the tubular conduit. In a preferred arrangement, the heater system has a dispersing reflector adjacent a relatively hot portion of the conduit and a parabolic or concentrating reflector adjacent a colder portion of the conduit to compensate for a varying intensity of heat radiated by the different temperature portions of the conduit.