Just bought a house that had been vacant for a few months. Turned the power on for inspection and didn't realize that the water heater had been "winterized" and had no water in it. Of course, one of the elements was burned out. Replaced both elements but still not getting hot water, although water in the bottom of the tank is very hot. Could I have burned out a thermostat? Would having no water in the tank cause a thermostat to burn out? Thanks,