I think you need to consider that the safety shutoff is meant to prevent the heater from catching fire, or shocking you. It is not meant to protect the heater from damage like you see in that pick. A manufacturer will point that out as an obvious dry run, and that the heater did most likely indeed shutoff.
Anyone who thinks they can run heater dry because of the safety shutoff is just plain asking for trouble.... It is not designed to be used in that fashion. It is meant for the rare occasion that the water level becomes too low... ie; tank leak, or you forgot to kill power during a water change.
Anyone who thinks they can run heater dry because of the safety shutoff is just plain asking for trouble.... It is not designed to be used in that fashion. It is meant for the rare occasion that the water level becomes too low... ie; tank leak, or you forgot to kill power during a water change.
