This invention relates to a method for replacing pipes, and an apparatus therefor. The cooking apparatus senses the size of a cooking vessel, or more specifically, the undersurface area of the cooking vessel, and selectively operates heaters accordingly. A first channel is formed in a surface of the substrate within the flow control area. The second electrode is disposed at the rotatable pedestal and electrically coupled to the first electrode in order to form a circuit loop. The gaming system uses the data gathered from the seeding source associated with the player’s picked selection to determine one or more seeds.