Re: Bbqu coals.
btw briquettes...prob. not a good idea because most of them have coal tar and other stuff added as binders.
All coals make carbon monoxide. Even the good ones made for hookahs.
If you want to use commercial charcoal get the all natural (e.g. lump charcoal) kind made from just plain wood. CO is unavoidable with burning coals but who needs coal tar and binders....yechh.