Tutco-Farnam, a leading manufacturer of air and surface heating products, announced the investment of $2.5 million to expand its Arden, N.C., facility. The expansion will lead to the generation of 90 new positions in engineering, production and operations within the next seven years. Scheduled for completion in January 2014, the 21,400-square-foot addition will nearly double Tutco-Farnam’s capacity. The company develops high-temperature air and surface heating solutions for the medical, transportation, energy, defense and aerospace industries.