Ok so me and my hubby just got a wood burner to help with heat this winter. We got our house last spring and down in the basement was this hole in the wall that led up to the roof through the chimney. So anyways we were gonna run a pipe down the existing chimney but found that it has a ledge or something in it so we couldn't but when my hubby was putting the chimney cleaner down the chimney to test which of the four we were looking for he kept hitting like blockage and huge amounts of what looked to be coal would come tumbling down out of the chimney. Eventually he ran out of pole and we figured we had found the right hole and he even did a smoke test by burning some corn stalks to see if the smoke was clearing the chimney and it was but that doesn't ease my concern. I am afraid that there may still be loads of coal or whatever was falling from the inside of our chimney and that it may be unsafe to use until its been assessed by a inspector but my hubby thinks it will be fine. I tried to look on the internet for a similar problem with large amounts of soot or coal including lumps falling from the chimney but couldn't find anything. So my question is does anyone know why my chimney would have this problem, is it a dangerous problem and do you think we should use it or get an inspection done first?