Resilient Picture Company shows how you can create a fire sim and render with Cycles in Blender.
This three-part tutorial from Krishna Bala (Resilient Picture Company) shows how to make a fire sim in Blender and use Cycles to render the effect. The fire shader is a Cycles one, where Bala shows how to bring out the finer details in the fire.
The tutorial uses ACES color space and also covers optimizing the scene and render for better rendering performance.