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