Burner safety valves: The safety system automatically reduces the gas flow in risky circumstances, such as extinguishing the flames due to drafts or spilling liquid from a pot. Gas conversion kit included: All gas cooker models come with standard equipment – a replacement valve. Gratis power cord: A gift power cord comes with each cooker model. Mechanical control: Mechanical operation is simple and practical; turning the knob on the bottom of an appliance regulates the temperature to a desired level.