Any of you burn wood and coal together. Bituminuous Coal is what i am asking about. I can burn either in my boiler (non Gasser) and was gonna try mixing wood and coal to produce better heat through the night. If anyone does this how do you load your boiler Coal on top or coal on bottom and typically how much. More coal than wood or more wood than coal. I know I can play around with this and figure it out but just wandering what others do