The Trangia burner is an ingenious original product. Many have tried tocopy it, but nobody has completely succeeded. The silent burner has asimple, durable and safe design. Regardless of the weather, wind andseason, it is easy to light. The spirit burner takes up little spaceand weighs less than a gas burner. The simmer ring is used to regulatethe heat, which saves fuel, and is used to extinguish the flame. Including screwcap. Insevere cold, a winter attachment (sold seperately) can be useful. Apre-heater is placed under the burner, filled with fuel and lit to warmup the burner. The accompanying, reflective plate is used as a base. Fuel: Spirit