I just purchased a second hand Harman coal stoker. I had it checked out and installed by a certified Harman dealer. We had a fire going a couple of times, in the past few weeks. However it went out 4 days ago, and my teen age sons and I have tried every thing short of dumping the coal in the floor and applying gas and a lit match. When I say everthing I mean: kindling, charcoal, firestarters, a "mouse" sold by an Alaskan dealer and last but not least a blow torch. We cannot even get the kindling ect to ignite. Could it be that the fire box itself is too cold??? Also, the installation guys did not install the barometric damper,as they brought an incorrect size with them. Could this have anything to do with the problem???