This looks best once it's fully (pardon the pun) fired up.
So I figured I haven't really contributed anything at all to this community, so here is a little stylized fire based on the particle object. It's a heavily modified version of the fire demo that was on here. I changed the texture to something more fire looking, and modified it a lot to be a little smaller and have tiny sparks floating around it/through it. I was amazed what a simple texture could do to diversify the particles once I was through.
Yeah, stylized fire, maybe for a cartoon looking game or something.
If you modify the display angle turn randomizer you can get much different effects, possibly more realistic or out of control looking.