I have found all of these discussions informative.
Attic ductwork design.
A raised truss would also be used.
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.
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.
Adapt the design to the type of unit.
10 3 fire and smoke dampers.
This involves return air unconditioned coming into the heating cooling system.
Up against the deck may be the worst place in the attic to.
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.
One on a concrete slab.
It was new when the ac was put in 7 years ago.
9 1 distributed return.
Duct fittings and terminal units.
10 2 volume control dampers.
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.
I am planning to build a single story home near crystal river fl.
6 tips for good ductwork design.
The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house.
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.
Then by heating cooling that air delivering the newly conditioned air to your home.
Information relating to thermal characteristics of each room as well as the local climate is utilized by the software.
Not providing enough returns is a common ductwork design flaw that leads to comfort complaints.
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.
Ductwork design mistake 5.
10 4 diffusers grilles registers.
9 2 central return.
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.
10 1 duct fittings and transitions.
9 3 pressure balancing.
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.
The attic ductwork is flex duct work.