When buying presto pouring pots, the ones I have bought in the past always has the pouring spout to the outer edge. I understand this is to miss the heating ring that goes around the outer edge. My question is,,,, does the heating ring just go around the outer edge or does it start in the middle and coil to the outer edge. I would like to make a 10 quart pot and put the pouring spout in the middle of the pot if possible???