Rambozo,
Sorry, but I will have to step in here and Contradict you. This is unsafe, and is ILL advised. Also it can open you and us up to a lawsuit. Using a "tapped" into line like this is against almost all wiring codes I know of. Additionally ranges are 4 wire. A guys house burns down or something happens, and his insurance company won't pay because it was a customer boned up issue. Please let us make any wiring recommendations IF we feel we can. Always consult a licensed LOCAL electrician before attempting any electrical alteration to your home or shop wiring.