Recently I had to whip up some renderings for a client who sells alcohol-fuel fires, eco-stoves, eco-heaters, call them what you will; they amount to a surround of some kind and a spirit burner that uses ethanol as a fuel.
The fire and smoke simulator in Blender is a lovely piece of work, but it is more geared toward larger, more natural fires than what I needed. The flame I had to simulate burns slow and cool from a narrow slot and rises to about 15-20cm. It is also quite cohesive, that is few smooth flames with little turbulence.