I've got a new Jotul F55 and have burned it a few times. Last night I had a fire going and when I woke up this morning I saw what was a splatter mark underneath the stove near the side. It smelled like soot, but when I looked on the bottom of the stove, I don't see any residual marks where it leaked from. Not sure what to think. I only had the stove maxed out at 450F.