Put a thermostat in the tank and reading 10 degrees hotter than my heater is showing. I just recently took my thermostat out because It was always exact but I guess the heater shorted out when I lost power the other night. Im going to do a water change anyway but feel horrible about what happened, I'll be replacing the heater next week and until than monitoring the temp with the thermostat. Anyone have any other advice that could possibly help?