Originally Posted by
Jim Luttrall
IRC 2003 R1005.1
Factory built or masonry fireplaces covered in this chapter shall be equipped with an exterior air supply to assure proper fuel combustion unless the room is mechanically ventilated and controlled so that the indor pressure is neutral or positive.
I don't see the wording you mention in my 2003 IRC, is there a change in the 2006 Jerry?