Dragon torch kits provide a natural, non-chemical method of removing unwanted weeds and brush. From weeds in the lawn, garden and driveway to weeds and brush in the fields, fence lines and irrigation ditches. Uses a gas grill type propane cylinder, not included. This model’s 2-1/2″bell, 400,000 BTU torch produces approximately an 18″flame with the hottest temperature around 12″. This size is better suited for large coverage areas such as driveways, fence rows and ditches.