REHAU was named an authorized reseller of Mc4 software, a heating system design program with graphical input and AutoCad capability, for the United States and Canada. Mc4 is offered in four modules - HvacCad, PipeCad, FireCad and the Mc4 Suite. All are available in four languages. For more information and free 15-day trial, contact REHAU at 800/247-9445,