In countries such as India, Pakistan, Brazil, and most nations of Africa like in Nigeria, even in European Union countries have gas cylinder bottles that do not require external regulator to operate. A camping gas stove that screws straight on top of a 3kg, 4.8kg, 6kg, and 10kg gas bottles. It is all in one with camping gas stove, which makes it easier to cook on top of the cylinder.
Valve on the LPG cylinder allows the gas to pass through the regulator to the gas stove, thanks to the help of a burner & valve attached to it. To switch on the cylinder + camping gas stove, hold a lighted matchstick near the burner head of the stove and turn the knob. Keep the vessels closed with a lid while cooking tonight reduce cooking time and energy use. Also, check whether sealing rubber (O-ring) is in place inside the cylinder valve. Gas can escape if sealing rubber is not intact. The rubber can help reduce iron to iron fricition of cylinder valve and the gas stove. It also helps tighten camping gas stove on the cylinder valve.