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08-20-2013, 12:25 PM #1
08-20-2013, 12:43 PM #2
Re: Smoke Detectors Inside HVAC Returns
Should not be in the ducts.
I think this is the siren in the picture.
Plastic smokes when burned.
Even duct mounted smoke detectors are mounted outside the ducts and have a sampling tube going into the duct.
Last edited by Rick Cantrell; 08-20-2013 at 11:34 PM.' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.
08-20-2013, 05:31 PM #3