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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