Many firms in need of additional heating capacity in their manufacturing processes turn to older furnaces that can be obtained through auction or other means instead of buying new. Breathing new life into these furnaces often means taking a careful look at the condition of the refractory lining.

Modular refractory systems have been widely used for the last several decades. Throughout this time, module design advanced in an effort to combat issues such as shrinkage, water penetration and attachment-system failures.