Rauschert Ceramic infra-red plaque 26574/4-8101-101

This is a ceramic infra-red plaque used as a spare part in gas-fired radiant burners. It measures 72 mm in length, 55 mm in width, and 12.5 mm in height. The material is porous ceramic, which is brittle. Its function is to provide a stable surface for combustion.

Parts of this type are selected by exact dimensions, as the plaque must fit the burner's mounting frame and sealing gasket. Before ordering, measure the existing plaque and confirm the burner uses an atmospheric or premix radiant system, since these plaques are not interchangeable with metal fibre mats. The specific burner model also determines the plaque layout and whether gaskets or retaining clips are needed, so compare the replacement with the removed part. Handle the brittle ceramic carefully during installation.

Cracking or clogging of the porous ceramic is the usual failure. This reduces burner efficiency and may cause uneven firing or flame lift-off. Inspect the plaque surface for cracks and blocked pores.