Ductwork Design & Installation


Heating, ventilation and air conditioning systems employ ductwork to direct air to and from a heating or air conditioning unit. Proper ductwork design and installation are critical steps in creating an efficient HVAC system.


  • Certain industry standards must be followed in the creation of HVAC ductwork systems in America. An HVAC system must meet minimum flame-spread, smoke development and performance temperature ratings. The Air Conditioning Contractors of America is an agency that outlines proper HVAC and ductwork design and installation standards in the U.S.


  • The ACCA’s Manual D can be used to determine the proper scope of the ductwork needed to link into a specific HVAC system. A properly designed ductwork system provides even airflow between rooms. An improperly designed ductwork system can greatly decrease the overall efficiency of the HVAC system. Ductwork should be designed in a fashion that avoids contact with any conduit lines, metal fixtures or pipes. All ductwork should be constructed out of a galvanized metal.


  • Consumers in most parts of the country have easy access to companies that specialize in HVAC system design and installation. Unfortunately, professionally installing a ductwork system can cost a few thousand dollars. However, intermediate do-it-yourselfers can design and install a ductwork system themselves to lower costs. These handymen need to remember to take accurate measurements and properly seal their ductwork.

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