The novel lance of the present invention may be used with a conventional axisymmetric burner or with a nonaxisymmetric burner preferably having {TAIL ~ a shape} similar to the shape of {HEAD ~ the lance} to thereby generate a curved or flat flame which is more readily adapted to effect uniform heat transfer 
The novel lance of the present invention may be used with a conventional axisymmetric burner or with a nonaxisymmetric burner preferably having { TAIL ~ a shape } similar to the shape of { HEAD ~ the lance } to thereby generate a curved or flat flame which is more readily adapted to effect uniform heat transfer
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