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The furnace grate and tray simplifies the burnout procedure of lost wax casting. It is no longer necessary to remove flasks and tray, then replace flasks to avoid carbon build-upon heating elements (a primary cause of element failure). Now you merely slide the stainless steel tray from beneath the grate at the end of the wax elimination cycle and proceed with burnout. This not only protects heating elements in electric furnaces, but also protects the floor of a furnace, eliminating the need for a hearth plate. The grate is cast iron for strong support and long life.