another here who has pulled out the weldment due to that hole for repair,on my invincible T two years sgo. My welder tig'd it beautifully for forty bucks, and running great.
I'm convinced mine opened there due to the fire chronicslly burning down to the auger, auger grinding carbon against the tube for eighteen years, and thinning the metal, because thinned metal was adjacent to the hole.
Welder said the metal was well suited to filling because it was quality steel and absent of corrosion.
Upon reassembly, made great care to eliminate all paths for leaking air to the hopper. Since, the fire begins just below the burn pot air holes, and the auger tube just sees warming ,nonabrasive, raw pellets, and should last a very long time still.
I'm convinced mine opened there due to the fire chronicslly burning down to the auger, auger grinding carbon against the tube for eighteen years, and thinning the metal, because thinned metal was adjacent to the hole.
Welder said the metal was well suited to filling because it was quality steel and absent of corrosion.
Upon reassembly, made great care to eliminate all paths for leaking air to the hopper. Since, the fire begins just below the burn pot air holes, and the auger tube just sees warming ,nonabrasive, raw pellets, and should last a very long time still.