Supply duct too small?

[rmaday]

Duct was plastic, cut as shown. All registers on first floor are like this (smaller than opening). One year warranty inspection. Slab foundation.

Comments.

Thanks in advance.
Rick

[Marc D. Shunk]

Perhaps the system was balanced to function that way? Not enough information to say, really, unless you took some face velocity measurements.

[gbeaumont]

Originally Posted by rmaday

Duct was plastic, cut as shown. All registers on first floor are like this (smaller than opening). One year warranty inspection. Slab foundation.

Comments.

Thanks in advance.
Rick

What the hell have they used for duct?? that looks like green plastic sewer piping.

Thats never right, it's not even insulated

Regards

Gerry

[ROBERT W. NEWLAND, JR.]

Since they were all that way, I would agree that it's probably to balance the system. Looking at those cuts, it would have been much easier to make a big ole cut than a little one

[ROBERT W. NEWLAND, JR.]

Originally Posted by gbeaumont

What the hell have they used for duct?? that looks like green plastic sewer piping.

Thats never right, it's not even insulated

Regards

Gerry

I'm definitely not a HVAC guy but would you insulate a duct that's in concrete? I don't know how they do it

[gbeaumont]

Originally Posted by rnewland

I'm definitely not a HVAC guy but would you insulate a duct that's in concrete? I don't know how they do it

sorry missed the slab bit!

Regards

Gerry