Hvac Ductwork Attic Ductwork Layout

Larger volumes or higher static pressures should be dealt with on an individual job basis.

Hvac ductwork attic ductwork layout. With newer foundation systems involving embedded rebar or tension cables making in slab hvac ductwork nearly impossible there s little other option but to move it to the attic. Contractors can make the mistake of failing to consider the type of air conditioning system you have load requirements of different rooms where ducts and equipment are located and the materials used. Here are some of the common ductwork design mistakes that impede the function of your air conditioning. The following duct sizes are based on a fraction drop of 10 inches per 100 feet of lineal duct.

Route ducts between joists in a basement if possible or over them if necessary. Remodeled home attic mounted hvac unit return box mounted approx 18 from side of ahu end has 20 flex duct attached and run in a big loop 10 15ft around to the end of the ahu. How to design a duct system. This equal friction method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications.

As i have been researching it seems that placing the ductwork within a conditioned space is more energy efficient than having it run through an attic area. Make sure your hvac contractor follows these duct design best practices and principles using manual d. Ductwork diy heating and cooling product sales for the do it yourself home owner. Ductwork design mistake 1.

This allows us to get rid of useless unconditioned attic space at the same time. Make the layout as symmetrical as possible with branch ducts spaced evenly along the trunk duct and each branch of similar length. In the 70 s and 80 s in slab hvac ductwork was commonplace and took advantage of the relatively stable temperature of the slab at or near the ground. In this video we ll be learning how to size and design a ductwork for efficiency.

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. We re designing a passive solar home but will still need to incorporate some hvac for extremes. Situate the air handler close to the center of the layout to minimize the length of ductwork spans. Hvac layout design.

We have over 50000 hvac parts available to us. Includes a full worked example as well as usin. Avoid any hot elements such as water heaters heater or stove.