The hot combustion air system leads the preheated air from the recuperator to the burners. The system is designed and prefabricated in stainless steel as the temperature is high. To take care of the big thermal expansions, the system includes stainless steel compensators, fix supports and sliding supports.

Edmeston supplies pre-fabricated piping systems and ingoing components, such as dampers, valves and compensators for air temperatures between 20 and 800 °C.