For hidden-fire charcoal Light the charcoal with a match and the heat is up to as high as 6000-7500 major calorie.As it can burn as long as 60 minutes, it can be used for burning and one time burnout stove. It is very popular in tourism and at home. For Flaming charcoal Light the charcoal with a match and the flame will rise up to as long as 10 cm. It will be burn for 50 minutes and it is an ideal chice for cooking, burning, and chafing dish in tourism.