hi, I have a viking junior 4100 hand fired coal furnace. i'm having an odd issue. The cleanout in the back is smoking. it's a little hatch thingy at the very bottom of the furnace in the back. it's quite a was below the fire box about paralell with the as door. now the odd thing is that the ash door doesnt smoke and neither does that main door. when i have the door open that hatch leaks. the smoke would have to travel down to get to it. if it was a proper draft problem wouldnt it be coming out the front too?
also, my coal this year sucks. very duffy. mosty dust. it has a tendancy to melt into a big block and just simmer. i'm not getting 1/4 of the heat out of it that i usually do.
any and all advice is welcome!