Show scientific analysis of heat values of wood Alt although bough wood la is only CO 60 per cent as efficient as coal certain wood have hagli big heating beating values rallies which are ara not fully recognized by many people according to T a shaw extension forester of purdue university assuming vo 00 cubic feet ot of solid wood in a standard I 1 cord 4 feet high 4 feet wide and 8 feet long he pointe point out that it a cord of seasoned hickory hacko y will give out as much heat as a ton toil ot of average coal oak will produce prodica almost as much heat as hickory those of 0 the white oak group being most efficient other good fuel woods are hard maple beech elm back blackberry berry and ash dogwood Is very desirable for use la in open on account of its attractive blue flame and it Is also high in heating beating value ranking with the white oaks as fuel split wood has a lower moisture content than pieces in the round and therefore has a ill higher ber heating value pa part rt of the aversion to wood as fuel has resulted from the tact fact that many people use wood which to ig not thoroughly seasoned green wood may be from 5 to 20 per cent less valuable tor for fuel than air dry wood indiana farmers canners guide |