Make sure your hvac contractor follows these duct design best practices and principles using manual d.
Attic ductwork layout.
Place ducts on top of joists in a ceiling or attic.
When hvac ducts are installed in a vented attic in a dry climate bury the ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space.
The layout and installation of the duct system will incorporate these basic principles of good ductwork design.
Then by heating cooling that air delivering the newly conditioned air to.
When the location of hvac equipment and duct system and not optimized in the planning phase the equipment may end up far away from the space to be cooled.
This involves return air unconditioned coming into the heating cooling system.
Ductwork design mistake 2.
Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords.
Avoid any hot elements such as water heaters heater or stove.
Make the layout as symmetrical as possible with branch ducts spaced evenly along the.
To promote balanced air circulation through the supply ducts home and return ducts the ductwork should be simple in layout accurately sized sealed insulated in unconditioned spaces and installed in the right places.
The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house.
Route ducts between joists in a basement if possible or over them if necessary.