The film below is a demonstration film that shows how the ZPZ foil point wise self-regulation works versus a constant heater. Follow the timeline to see how each point on the ZPZ foil surface automatically regulates its heating power to accomodate for varying thermal loads and ambient temperatures. An efficient cooling and/or low ambient temperature gives an incrediable effect of high power and vice versa. Because of the ZPZ design, all points on the foil surface react completely independently.