The results of a laboratory and both industrial experimental investiga
tions of the interaction between a propane flame and external radial e
lectric held are presented in this paper. The effect of the radial ele
ctric field on a flame is found by the local measurements of a flame t
emperature, composition and radiation of gas compounds. It is obtained
that the external electric held and flame interaction markedly affect
s processes of a free electron and ion transfer in a held direction. T
he intensification of a free electron transfer results in a more inten
sive excitation, dissociation and chemical interaction of gas compound
s, while an intensification of a transfer of positive ions by an exter
nal field results in an enhanced heat and mass transfer in a held dire
ction. In fact, the processes of interrelated heat and mass transfer a
re accompanied by the deformation of a radial and longitudinal distrib
ution of a flame temperature and composition. The optimal conditions o
f a field and flame interaction for achieving an increase in a heat ef
ficiency of district heating boiler houses with simultaneous reduction
of NOx and CO emission in atmospheric pollutants are examined.