We currently have a gas cooktop and an electric oven (the cooktop is located on top of the oven). We would like to install a new electric cooktop but are being told two different things. (1) The gas can be shut off and both oven and cooktop can run off the "220". (2) That we will have to run a second "220" for the new cooktop which will require new wiring and a considerable amount of money. Any advice will be greatly appreciated. Thank You.