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.

Pretty cut and dried without going further, seems to apply to all fireplaces, not just solid fuel.


I don't see the wording you mention in my 2003 IRC, is there a change in the 2006 Jerry?

__________________
Jim Luttrall
www.MrInspector.net
Allen, Texas 75002