Treated lumber

[overclocking]

Does anyone know if treated lumber is corrosive to steel when heated?

I had a pile of dry 2x4, cut pallets and untreated scraps that I told my kids to get rid of and chuck in the boiler, so I checked the side of the house the other day and it was all still there. When I asked them why they didn't get rid of it they responded "we did" then it hit me. They had burned all the old deck boards I stacked under the deck instead.

It was a pretty significant amount of wood too, probably 1000sq ft. Does anyone know if this stuffs corrosive? I'm just waiting for the thing to start rotting in strange places now.

[Don P]

If it was ACQ, the modern I guess post ~2005 stuff the alkaline and quat are probably corrosive, the copper in pre or post modern might help set up a little galvanic corrosion but I imagine most of everything went up the stack. Of more concern is the ashes, if it was old CCA a couple of tablespoons of ashes is enough to kill an adult so dispose of in a safe way.