COLUMBUS, OH — McGill AirFlow Corp., manufacturer of spiral duct with a nationwide network of sales and engineering offices and duct outlets, has enhanced its website at www.mcgillairflow.com.

New features include Current Awareness Service (CAS) and “Ask an HVAC Expert,” as well as an expanded library of downloadable product literature, dimension booklets, technical bulletins, and white papers.

CAS helps subscribers stay abreast of advances in duct system technology and design techniques. This free service provides e-mail alerts and distribution of new information.