No problem. It was not an obvious thing to look up.
The range of compounds includes carbon which is a solid at all reasonable temperatures, Various tarry compounds that are generally liquids and not very volatile, waxes that are solids but melt easily, various volatile liquids such as organic acids, alcohols such as methanol, ring compounds such as furans and the like, and gases such as formaldehyde and carbon monoxide.
At the time of the heating most of the liquids will be gases (or vapours if you like) but the less volatile substances will condense if you cool them enough. "Dry distillation" is what they call that sort of thing.)
