Originally Posted by Jhawks240
Putting a coal on the middle of the bowl isn't good. Start on the sides and work your way around the circle, this will use the tobacco much more efficiently.
Is that the same for a vortex bowl though? I think that it would be more efficient in the midde if you had one 40mm. The middle spire is kind of like the edge of a bowl. You aren't directly over the shisha, but evenly around the entire bowl.