Ducts in ceilings
Ducts in ceilings
(OP)
I am in the business of designing residential ductwork and am being encouraged to keep ceilings as high and uncluttered as possible. Therefore I try to keep the ducts in the floor trusses whenever possible. My question is, is it practical to design ducts to fit into the rectangular block outs that floor truss manufacturers provide? These floor trusses are usually 19" on center. How can they get their ducts into these spaces?





RE: Ducts in ceilings
RE: Ducts in ceilings
RE: Ducts in ceilings
RE: Ducts in ceilings
RE: Ducts in ceilings
RE: Ducts in ceilings
If you insist, there are O/A connections on some brands, like Daikin. Usually a 4" dia. connection on the fan coil. You can run a 4" dia. flex duct for about 50'.
I don't like floor grilles, as I think of them as dirt collectors, but that is just me.
The point is, the ductless systems will solve your problem. They work, are very quiet and efficient. They have been used all over the world for 20+ years (maybe more).l It is an option
RE: Ducts in ceilings
RE: Ducts in ceilings
RE: Ducts in ceilings
The advantage remains that you can duct very small ventilation ducts rather than big heat/cool ducts in a ductless system.
I don't disagree that ductless systems (with ventilation ducts) are expensive, but if a designer can't stand the thought of a furred out duct or demands high ceilings without building them higher and still wants air conditioning then....
To answer the OP question, commonly I've seen return air ducts done the way you describe, but never supply ducts.