The other day I was smoking hookah, and my fireplace was going. Staring back at me were huge red pieces of already hot coals. So I grabbed one with my tongs and threw one on top of the bowl. It was surprisingly good. No taste imparted whatsoever, and ashed just like other natural wood coals. I am only burning natural firewood, do you guys see any problems with that or is that just like using any other natural wood coal?