This triple stacked polished rock makes a perfect pyrimid effect for water flowing over the rock.  The fire is ignited right on top of the water.  We do offer 5 layer fountains as well as kits to hook to a propane tank.  Electronic igniton is available as well but a thermocoupler sticks above the water.  These can be hooked directly to your house NG line as well.  Email us for more pictures and videos, people love these things!