Lucifer Furnaces supplied a Red Devil furnace to Custom Window Systems Inc., a manufacturer of high-quality window and door products based in Ocala, Fla. The furnace, which has a work chamber that measures 12 inches high x 14 inches wide x 18 inches long and heats to 2200°F (1205°C), will be used for heat treating punches and dies. Standard features include a Honeywell digital time-proportioning temperature controller, 4.5 inches of firebrick and mineral-wool insulation, a ceramic hearth plate to protect the floor brick, a horizontal swing door with a cam lock for a tight seal, and an automatic power shut-off safety switch. Easy-to-replace side-wall heating elements are designed with long-lasting, heavy-gauge wire coils in radiant panels.