Heavy duty cooking appliances, such as charcoal ovens, charbroilers or gas woks etc have always been challenging for the fire safety. They are characterized by high heat loads that generate high temperatures inside the exhaust ductwork.
They also generate a large quantity of FOG (Fat, Oils and Grease) in addition to carbon particles. Using solid fuels, such as charcoal, adds another risk: they emit a significant amount of sparks. The fire risk is a considerable concern for heavy-duty cooking appliances, whatever its type.