One of my buddies from school was doing some work at his uncle's house and called me with a question.

Apparently someone had wired the Hot water Heater through a nearby receptacle. The water heater is 208/240 and the receptacle is 120.

My understanding of it is the element will still work, just at half capacity. Is this incorrect?

He is currently correcting it. I just wanted to hear some opinions on the matter.

"If common sense was common, everyone would have it"-not sure, someone here