First off, I love how this picture turned out. Not bad lighting for a clip light and a piece of spare orange/red lighting gel.
Secondly, this fire clip has served me so well over the years. It's a still from a bit of fire video effects composite footage from Detonation Films which has a large selection of free special effects clips, such as bullet hits, gunshot discharge, blood spurts, and, yes, fire and explosions. Great stuff for amateur filmmakers such as myself who are too lazy and/or cheap to buy Video Co-Pilot or learn After Effects.