Replies

1. 
   ponytl | Jan 22, 2009 05:18am | #1

   yes here you can have alot of things (wire runs ect) in a return... as long as it is sealed...  thats code...  a non issue... it's the same air as in the rest of the house

   P

2. 
   Stuart | Jan 22, 2009 05:34am | #2

   Article 300-22, wiring in ducts, plenums and other air handling spaces (I have a 1999 edition here at home, I can't say for sure if it's the same section number in newer versions but I believe it is.) At any rate, the short answer is the wiring needs to be either in metallic conduit or else rated for plenum use.

3. 
   DanH | Jan 22, 2009 06:55am | #3

   IIRC, romex can run across a duct but not through it lengthways. Not sure about having the box in the duct.

   The modern conservative is engaged in one of man's oldest exercises in moral philosophy; that is, the search for a superior moral justification for selfishness. -John Kenneth Galbraith