warbler wrote:

I know in the past that it was a no-no to throw pressure treated lumber
into a fireplace or woodstove. Either it was arsenic or some other
nasty chemical that was the problem. But now that they have this new
way to treat the lumber with apparently something more eco-friendly,
can one burn the scraps. I have a lot of this stuff hanging around and
would love to not burden the garbage man and landfill with it.

Still a no-go...ACQ removed the arsenic from CCA. The MSDS is available
at
http://www.ufpi.com/literature/acqmsds-200.pdf