Smokeless Fire Pit

The fire pit is finished.  The idea is that air enters a gap between the metal ring and the stone through spaces between the stones in the bottom course.  That air is heated by the fire rises to the top of the gap.  That hot air has nowhere to go but out the holes in the top of the metal ring.  It is so hot, it burns any smoke leaving the fire.  That draws cool air in from outside the ring and the process repeats.  We'll see how well it works this weekend.