Topic: Any fireplace gurus in here?

[Middler1]

Got a quick question for any experts in here. I can get an almost unlimited supply of plywood "drops" from work. They average 10" by 5" by 3/4". Since they're made up of separate layers of wood glued together, are they safe to burn in a fireplace, or should I just use them for bonfires outside?

[bucky katt]

outside bonfires
between the glue and the fact theyre likely made up of pine, theres the resin problem too. and make sure the pieces arent "marine grade" plywood as alot of times it's treated with arsenic

[Middler1]

That's kind of what I was expecting to hear. Oh well, it was worth asking. Thanks.

[tramp]

if you decide to burn them keep the fire hot and the flue open
which you should do about once a week anyway

[BeSeeingYou]

Be very careful about burning dimensional lumber in a fireplace.  2x4's, 1x4's, plywood, etc.  Aside from the glue in the ply, resin in the pine, and the possibility of the wood being treated, it burns too hot as it is much dryer than split firewood.  Use it as kindling or in small quantities may be ok.  I know someone who had a gazebo that he tore down and burned the remains in his fireplace.  The fire was so hot that it started a  small smoldering fire in the wall possibly through a loose or missing mortar joint.  Fire Dept came out, tore the wall open from inside the house and hosed it all down with a massive quantity of water.  Ruined the hardwood floors on the whole first floor, water ran downstairs and ruined a room in the finished basement.  They almost destroyed the house in order to save it.