controlling an amount of coolant flowing through a control header valve connected to a spray cool supply header disposed in a wall or a roof of the metallurgical furnace;

spraying, from a plurality of spray nozzles of a plurality of spray conduits connected to and extending from the spray cool supply header, the coolant onto a surface a plurality of zones defined across the surface of the metallurgical furnace, each spray conduit having one or more control conduit valves operable to control an amount of coolant flowing to the plurality of spray nozzles;

sensing, via a plurality of sensors, a change in temperature of a first zone of the plurality of zones defined on the surface of the metallurgical furnace; and

changing, by operation of a control system coupled to the plurality of sensors, the control header valve, and the one or more control conduit valves, the amount of coolant flowing through the control header valve, and the one or more control conduit valves to the surface within the first zone relative to a second zone of the plurality of zones based on the sensed change in temperature.