Creating this thread so it'll help others to make a decision on how different coal will burn. My comparison is between Jeddo and Casey Kassa. Burning in a Ka6 . Casey coal will fill ash tub with temps outside between 25-35 degrees within 12-13 hours burning approx 80lbs. Ash tub weight is 40lbs. Jeddo with same settings with outside temps little warmer 30-40 degrees. Burning 19 hrs and ash tub is 1/4 full. Will be posting ash percentage once hopper is empty. Had to turn feed rate down by 2 turns burning Jeddo since boiler has reaching 195 after stoking.
Jeddo Coal Buckwheat,,, more of a rice/buck mixes
Casey Coal Buckwheat,,,