EAST LANSING, MI — Contractors must be relationship experts. But this is more than customer relations. An hvac contractor must understand the relationships in the home among heating and cooling equipment, ventilation strategies, insulation systems, windows, and other factors to get a real handle on how to maintain good indoor air quality (IAQ) and prevent problems.

That was the message provided by Steve Easley, owner of S.C. Easley and Associates, a Danville, CA-based construction consulting firm, in his keynote speech called “Under-standing the House as a System” at the “Energy: It’s Not All You Save” conference.