SUPER-BIO-FUEL Firepot + Fireplace + Wicked Device Fuel : 4PK/4L Bottles (16 liters) NOTE: REQUIRES A FIBERGLASS WICK OR BATTING IN ORDER TO BURN! We offer fire pot conversion wicks. See details below. Non-flammable for safe handling, yet combustible for economic burning. Most cost effective ethanol fuel alternative - burns up to 40% longer than ethanol fuels. Suitable for INDOOR or OUTDOOR use - generates no harmful or toxic exhaust. Laboratory Tested - certified for emissions and safety.