... smokeless,No ash,no odor 3longer burn time Gel fuel(Ethanol) ------a solution to clean energy ,soot ,smoke&odor free1..Through, ... safe to burn4. solid fuel(methanol)--longer actual burning than others5. Use: restaurant,hotel ,camping,hunting,etc. for heating up food ,chafing ... . It’s suitable for restaurants,camping trips commercial cafeterias,chafing dishes, barbecuing, hotels to heating foods, etc.