Refractory unit definition

Refractory unit or "refractory wall furnace" means a combustion unit having no energy recovery (e.g., via a waterwall) in the furnace (i.e., radiant heat transfer section) of the combustor.
Refractory unit or "refractory wall furnace" means a municipal waste
Refractory unit or "refractory wall furnace" means a municipal waste combustion unit that has no energy recovery (such as through a waterwall) in the furnace of the municipal waste combustion unit.