Impedance pipe heating. By now, those words probably conjure an image of long delivery lines: a stainless tubing line in a food plant, or a carbon steel line in a production facility. In either case, just a simple delivery line, taking product from a tank or storage area to a use point. Is this the only place to use impedance? Is it relegated to fixed delivery lines and nothing else? Of course not! While it is a simple, and effective method of heating pipe, it can also be a flexible one.