CHANTILLY, Va. - The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) has announced that the newly revised third edition of the HVAC Duct Systems Inspection Guide is now ...

Contains guidelines for inspection of commercial HVAC duct systems for compliance with SMACNA/ANSI HVAC Duct Construction Standards, Metal and Flexible, (3rd edition) and Fibrous Glass Duct ...

Buying a new HVAC system is one of the most important purchases you can make for your home. Consumer Reports indicates that more than 75% of U.S. homes use air conditioning, and 90% of new homes are ...