Making fire

[i3670]

I'm trying to simulate a house fire and after playing with the "13_burner"(?) lamp I realised that it wouldn't work. Partly because the fire is so small and scaling it doesn't do anything except separate the flames and not making them bigger and putting multiple small flames, to let's say cover a wall, looks wrong.

Is there an available model that someone has made or is there perhaps a particle system I could use?