Not just an electrical line. In a lot of new homes, they put it on its own circuit. The nicer models have tankless water heaters in them and can pull >12 amps o

Not just an electrical line. In a lot of new homes, they put it on its own circuit. The nicer models have tankless water heaters in them and can pull >12 amps on their own. That'll trip a breaker for sure if you've got any other high load on the same circuit (e.g. hair straightener, hair dryer).