Greetings; I am new the the forum. I have this old combination wood or coal burning/gas cooktop stove with the "St. Clair Stove--Ranges" moniker on it. This was removed from a relatives home 25 years ago, and at that time It was hooked up to a natural gas line as there are four stove top burners with a manifold and valves. It has been in my garage since then waiting for a restoration. It seems to be intact and in decent shape, although it needs a good cleaning. I am interested in using this to take the chill out of my garage in the winter months. Would anyone with a similar stove know if this can this burn nut coal, or was this a wood-only stove? The firebox has heavy cast iron grates that can be shaken or "rolled" with a square socket tool or a crescent wrench.