C-Mersion^SM is an immersion heating system for non-melting, molten metal applications. Target markets include aluminum holding furnaces, degassing, and die casting machines. The bayonet element is a high temperature Fe/Cr/Al alloy with heavy-duty insulators and leads. The radiant tube is high-density silicon nitride. The protective tube provides shock resistance over a wide temperature range and resists chlorine and salts used in alloying aluminum. The tapered tube design permits horizontal mounting through the wall in new and existing furnaces.