Below is the contraption that Cody, my first assistant and the studio "macgyver" made to allow us to shoot burning coals in the studio.

 

There is a high powered fan, the same type you'd use in attics and a hood big enough to capture the smoke. The long tube then shuttled all the smoke out the window and kept the inside of the studio free from smoke.

 

It was a great design and proves that as a photographer I can only do part of the job, my crew is what makes it all come together.