[davever]

I need to run a dedicated 220V line to a new Advantium microwave oven in a kitchen remodel. I have an existing 220V line that went to an electric cooktop that was replaced with a gas cooktop. Can I splice into the existing 220V line that did run to the old cooktop and extend that line in the crawl space under the floor a distance of approximately 12 feet to the new oven's location? Thank you.

[tkrussell]

Sure, just use the same size wire, be sure the breaker matches the circuit the microwave needs, splice the two cables in a junction box with wirenuts and cover the box. Leaving the box mounted under the cabinet will be fine, as long as the box does not get buried in the wall.