Immersion heater/high limit stat

[Gusterado]

Hi All

How can i tell if immersion heater already fitted to cylinder has a high limit stat, important as new (plastic) CWST being fitted to replace an old rigid asbestos tank. Can post a photo of immersion heater if useful

 

[ShaunCorbs]

I would say the pic you posted has a high limit stat/ cut out and also the thermo stat is a bit high set

Max 60dc

 

[heliotrope]

Hi All

How can i tell if immersion heater already fitted to cylinder has a high limit stat, important as new (plastic) CWST being fitted to replace an old rigid asbestos tank. Can post a photo of immersion heater if useful

View attachment 30263

The thermostat in your picture is fitted with an overheat
cut out.
The small red pin on the top will pop out if overheat occurs.

Push it back in where it says reset.

 

[townfanjon]

Yep as Shaun says its set too high , however just because it says 65 dont asume it is , they are very unreliable . Personally I would heat the cylinder , and check the water temp with a thermometer , if its 60 or thereabouts leave it alone.