ICRF heating at the second harmonic of deuterium in a D-T plasma produces an anisotropic tail of the deuterium ions in the direction perpendicular to the magnetic field. The non-Maxwellian distribution function leads to a significant enhancement of the reaction rate, corresponding to that of Maxwellian ions at much higher bulk temperature. The auxiliary power in the presence of ICRF is determined self-consistently from the power balance. It is shown that the enhanced reaction rate leads to savings in the peak power requirements.