The BlenderGuru Andrew Price has an in depth look at creating fire nd smoke and rendering it in a realistic way using the Blender cycles engine.
Andrew covers how to render the fire and smoke in Blender cycle’s and also offers some suggestions for the best simulation settings that will provide the best results. Andrew also shows how to make the burning embers, and have them follow the flow if the smoke form the fire.
Visit BlenderGuru for the complete tutorial showing How to Render Fire and Smoke in Blender cycles.
How to Render Fire and Smoke in Cycles
The best simulation settings to get realistic fire
How to make burning embers follow the flow of the smoke