Viessmann Manufacturing Co. announced the grand opening of its new U.S. head office and distribution center in Warwick, RI, May 14. Attendees at the company's dedication ceremony included Dr. Martin Viessmann, owner and CEO, Scott Avedisian, Mayor of Warwick, and Richard Threthewey from TV's "This Old House", along with 500 others. The new 38,000-square-foot facility features numerous offices, seminar and display rooms, as well as new display and educational facilities for heating technology firms in the area.