Ceramic fiber insulation module

An insulation module for lining an interior wall of a high temperature chamber comprising:

• a first block of high temperature insulating material, said first block comprising:
• a relatively cold face for positioning adjacent the interior wall of the high temperature chamber, and
• a relatively hot face, opposite said cold face, for exposure to a relatively cold face of a second black of high temperature insulating material;
• and
• a second block of high temperature insulating material, said second block comprising:
• a relatively cold face for positioning adjacent said relatively hot face of said first block, and
• a relatively hot face, opposite said cold face of said second block, for exposure to chamber heat;
• said first and said second blocks each comprising:
• a plurality of strips of resilient fiber insulation positioned adjacent each other in side-by-side relation, the fibers of said resilient strips being arranged in planes substantially perpendicular to the plane of said respective relatively hot faces of said first and said second blocks;
• said first and said second blocks being attached together, said strips of said first block being arranged to face in a lateral direction perpendicular to said strips of said second block to provide an insulation module attachable to the interior wall of the high temperature chamber.