Sandalwood scented incense cones can be used along with a backflow burner to create impressive smoke flow displays.
HOW TO USE BACKFLOW INCENSE
Light the incense as you’d light any incense cone: hold a flame to the tip until it catches, then blow out the flame and place the cone safely onto the BACKFLOW burner. Backflow cones have a hole in the base that goes almost to the top of the cone; place the lit cone so that the hole aligns with the hole on the backflow burner.
The cone will burn normally (with smoke moving upwards) until it begins to burn the hollow section, and will then begin to draw the smoke through the hole in the base of the cone (some smoke will continue to go upwards – this is normal). Each burner has a different ‘path’ that the smoke is designed to flow through as it continues to burn. Avoid breezes or draughts, as this will effect the cascading effect.