I'm trying to find out why my water heater is not hot yet?I went to the place I purchased it at and they said I had to wait a couple hours because its an energy smart it controls by it self.is that true?its been twelve hours and its still the same.it gets a llittle bit hot only after I turn off the breaker and turn it back on.cann someone please give me some advice.

To help we will need the brand name and model of the water heater. Regards, Tom