So, a little while back I was trying to remove the burn pot to clean it it well and while re-assembling it, I snapped the head off the bolt. It has been tight (as far as I can tell) been running the unit for 2 winters now. However, I am getting ready to give this unit a full gasket, real deep clean and wanted to know if anyone knew what size this bolt was from factory. I know most units have 2 bolts, mine only has 1, dead center of burn pot.