Stovetop heating elements, namely, cooking rings and convection plates used for cooking on electric coil, electric glass, electric ceramic, gas and induction stoves; electric or electronically controlled stovetop heating elements, namely, cooking rings and convection plates used for cooking on electric coil, electric glass, electric ceramic, gas and induction stoves that operate as one unit and are temperature controlled to automatically reduce or shut off power to the stovetop heating elemen...