A Sigdi is a stove used for cooking, especially in North India. The fuel used is usually coal, dried cow dung and wood, therefore it is principally used by those who cannot afford liquefied petroleum gas stoves. Sigris are also used during winters for warmth. A traditional Sigri is made from a steel cylinder by cutting a small hole in the side wall (to be used when lighting the stove). Then, several thin iron rods are pushed through the walls about seven centimetres below the upper opening, to form a mesh. The walls and the interior are covered with approximately an inch of clay, which acts as an insulator.