How long should heating element last in solar system?
I am asking because mine has lasted just over a year so, in fact not two winters. the switch keeps switching its self off. App its not the wire as this is one piece from heating element to switch not the switch (according to an electrician) so it must be heating elements thermostat telling it its over heating as I am only getting luke warm water! Any one heard of this, is it correct and do I need a new one? Any experiences appreciated please.