Pusher furnaces are typically suitable for low-production mills for common steel grades, for example rebar mills. Top-fired pusher type furnaces combine the benefits of a sturdy construction and simplicity in design with low consumption. Top and bottom-fired pusher type furnaces are capable of high production rates. Pusher type furnaces are an inexpensive, yet sturdy and reliable, alternative to more sophisticated walking hearth furnaces or walking beam furnaces for the production of long and flat products.