Does the result depend on the combustibility of the object? In other words, would it definitely explode if I used cooking gas instead of wood?

What would happen say you heated wood to a high enough temperature? just in a complete absence of oxygen therefore combustion (i'd imagine) would not occur.  Would wood start to liquidise? obviously wood is a combination of many chemical compounds and i'm sure they will all respond differently i was just curious as to whether any of them would liquidise out, if so or if not why?