![]() The size of each component is determined by the airflow that needs to pass through it. From these “trunk lines” come branch ducts (usually round) that extend, in various ways, to the registers which are strategically placed throughout the home. This type of system incorporates the use of a “trunk line” or series of rectangular ducts that act as a main supply channel throughout the house. crawl spaces and attics).īasic Ductwork (trunk Line) Layout – Duct Work Information For maximum efficiency, this “ideal” system should also be sealed at all seams with aluminum tape, and should be properly insulated when exposed to unconditioned environments (i.e. The ideal ductwork system achieves both goals by providing enough airflow to and from the heating/cooling equipment as well as the home. ![]() (This is especially true with older homes.)ģ. All homes have unique requirements and construction that pose obstacles when designing the ductwork system to accommodate each room with proper airflow. Furnaces and air conditioners require a certain amount of airflow, measured in CFM (Cubic Feet Per Minute), to be passed through the equipment (supply and return ducts) in order for the equipment to function properly and efficiently.Ģ. ![]() The 3 Most Important Things to Understand About Residential Ductwork Design:ġ. This means that your home’s ductwork system is just as important as the equipment used to heat and cool your home. An improperly designed ductwork system can cost money through inefficiencies, and in some cases, cause premature failure of heating and cooling equipment. Then, by heating/cooling that air, delivering the newly conditioned air to your home. This involves return air (unconditioned) coming into the heating/cooling system. The purpose of residential ductwork design is to properly distribute the airflow produced by your heating/cooling system to your house. recommends that all residential ductwork systems be designed and installed by a qualified technician. This page and all of its content is intended as a guideline from which to understand the basic principles of residential ductwork systems and their design. Understanding the basics of residential ductwork design is the key to ensuring your entire heating and cooling system is adequate and efficient. Ductwork Basics Basic Residential Ductwork Design ![]()
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