Lucifer Furnaces delivered an industrial heat-treating box furnace for use with inert atmosphere to Mott Corp., a provider of porous metal products and filters based in Farmington, Conn. This model furnace is a gas-tight unit with 24 inches x 24 inches x 48 inches of work space that heats to 2100°F. It is designed for a positive flow of inert atmosphere, with 6½ inches of insulation for energy-efficient heating. A 1½-inch-thick ceramic hearth plate serves as the work surface while protecting the floor insulation. Mott Corp. will use the furnace to dry castable-brick material in a nitrogen atmosphere.

This furnace is sealed with a double-pivot horizontal swing door that keeps the hot face away from the operator. Temperature to the chamber is regulated by a Honeywell digital time-proportioning temperature controller with a separate controller that serves as an over-temperature safety system.