An ETNA built-in induction cooktop is user-friendly and affordable. If you're looking for a decent cooktop without too many extras that you don't use anyway, an ETNA built-in induction cooktop is suitable for you. It's heated by a magnetic field. The cooktop itself doesn't get hot, but your pan does. If it's on without a pan on it, nothing happens. That's safe if you have small kids walking around.