Abstract: An oven system for curing coated product is provided, where the oven line has at least one oven zone, with an entrance end, and a port through which coated product enters into the oven line. Means are provided for capturing substantially all of the indraft air, at least at the entrance end of the oven, near the port, and balance fan means are provided for circulating that indraft air at least in a first volume to a heat exchanger, and then back to the oven line. Solvent-rich air within the oven is withdrawn by an exhaust fan, and is delivered to an afterburner whose principal source of fuel is the volatile solvent which comes off the coated product within the oven as it is curing. A snout is provided, extending away from the entrance end of the oven in a direction towards the flow of coated product into the oven, and the snout has at least one hollow duct which is positioned near the flow path for the coated product, usually over the flow path.

Abstract: An indirect fired oven system for curing coated products, particularly metal product such as coiled sheet steel or coiled sheet aluminum, is provided. The oven line comprises at least one oven zone though usually at least two or three zones are present, through which the coated product travels, and the oven line is operated at elevated temperatures. An indraft is induced at the entrance and exit ends of the oven line by a balance air fan which captures the indraft air at both ends almost immediately that it enters the oven line, and feeds part of the indraft air to a heat exchanger and then back to the oven zones, and part of it unheated directly back to the oven zones. The temperature in the oven zones is controlled by the influx to each zone of heated air.