Patent ID: 8428096

Claim:
A filler element for an industrial furnace roof comprising: a lower portion with a hot face and a top face opposite the hot face, the hot face having a generally rectangular and a generally flat shape, the lower portion having an aperture and the lower portion engageable with at least one hanger brick; a module having a generally rectangular bottom with a protuberance located on a bottom of the module, the protuberance correspondingly sized to fit within the aperture of the lower portion, the module mounted entirely upon the lower portion top face opposite the hot face and liftable from the top face, the protuberance engaging with the aperture when the module is mounted on the lower portion, the module having at least one bore extending through both the module and the protuberance, the at least one module having at least one lifting lug, the module including at least one seal brick positionable above the lower portion to insulate the industrial furnace from a surrounding environment; and a heat source positionable through the bore of the module and the protuberance, wherein a portion of the heat source is positioned through the bore of the protuberance when the protuberance is fit within the aperture and extends outward from the hot face.