Attic Ductwork Design

6 tips for good ductwork design.

Attic ductwork design. 10 2 volume control dampers. This involves return air unconditioned coming into the heating cooling system. What goes into good ductwork design good ductwork design starts with a load calculation using manual j software the standard program produced by the air conditioning contractors of america. 9 2 central return.

10 4 diffusers grilles registers. I am planning to build a single story home near crystal river fl. Then by heating cooling that air delivering the newly conditioned air to your home. And am thinking on laying the duct work on the attic floor covering the floor and ducts with 2 3 inches of cc foam and then blow insulation over all.

Well in the comments dave roberts a senior engineer at the national renewable energy lab nrel wrote about a paper he co authored last year and included a link to it. The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house. Up against the deck may be the worst place in the attic to. This involves return air unconditioned coming into the heating cooling system.

Return duct systems. Remember that article i wrote about ducts installed against the roof deck and how i said it was probably the absolute worst single location for installing ducts. Adapt the design to the type of unit. Not providing enough returns is a common ductwork design flaw that leads to comfort complaints.

Ductwork design 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. Ductwork design mistake 5. To maintain balanced air pressure and air movement your duct system needs return vents for air in the room to be pulled back into the hvac system. Sketch a rough design using a central supply duct from the unit to the opposite end of the house with branches forking to each outlet.

It was new when the ac was put in 7 years ago. Duct fittings and terminal units. 10 3 fire and smoke dampers. 10 1 duct fittings and transitions.

The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house. One on a concrete slab. The attic ductwork is flex duct work. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water.

I have found all of these discussions informative. 9 1 distributed return. 9 3 pressure balancing.