How would I go about using Pyro to light my scene? What i hope to achieve is flame torches as the lighting for my scene. I would have to cache the sims to than use with the rest of my scene.

how about advecting particles by flame velocity or generate point cloud from the pyro shader and copy/instance point lights with attenuation on every particle?

Seems like a good idea, I have no idea how to advect particles through the velocity though, any links?

I've had success lighting pyro scenes in the past by surfacing the volumes from the pyro sim, projecting a render onto the surface and using that surface as a geometry light. It's a bit easier to set up since you dont have to worry about balancing the brightness and number of point lights, and you can ensure that any adjustments you make to your fire in comp are reflected in the lighting.

Delight0092
Seems like a good idea, I have no idea how to advect particles through the velocity though, any links?

Setup a particle system, and use the advect by volume shelf tool in the drive particles tab. The tool set's it all up for you.

You can use your pyro flame as Geometry light, it's may slow your render, but if you use a PBR and GI light to cache your photon map, to reduce noise, it's may be faster than using many lights instanced…

Also, your scene will be more realistic…

cheers