Its been one week exactly so I did some measurements. Filled the 55 gal. drum back up to the top and it took 7 bags @ 40 lbs each = 280 lbs of coal. The ash weighed in at 70 lbs- 4 for the bucket = 66 lbs. That figures to be about 23% ash
I think the problem is the short cycles might be inefieciant at burning coal completley. Seems the red hot coals are centered toward the back unless the unit has been running for a while, then it is a full circle centered over the plates with a 2'' ash ring. I see a lot of un burnt coal in the bucket but when demand goes up I feel this will disapear. Any thoughts?