Product Review

Provides an understanding of the major issues concerning efficiency, comfort, health, and safety, with practical tips on installation and repair as well as testing and diagnosing duct systems. Intended for use by contractors, systems design­ers, advanced technicians, and other HVAC professionals. Focuses on how to:

â–  Save money
â–  Improve comfort
â–  Protect health and safety
â–  Improve envelope durability