Alright, this is something, which isn't entirely made by me, so I can't take all the credit. Just to clear things up; of course it is made by me, but with the help of programming.
I created a generator, which can generate any size of fire at my command, using particle movement, if I can put it that way. The fire's movement can be changed, by changing the movement of the particles.
A few samples:
Some constructive criticism would be nice.