An infrared heater (1) includes a plurality of cylindrical light emitting tubes (5) that emit infrared light, a connection member (6) that connects end portions of the plurality of light emitting tubes (5) arranged along a radial direction of the light emitting tube (5), and a reflecting film (7) that is provided on a peripheral surface of the light emitting tube (5) and that reflects infrared light, in which the reflecting film (7) is formed of a material containing gold as a main component.