immersion boiler over heating Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[dstewart]

Hi,
everything with cental heating appears to work fine, including heating of water within immersion tank using gas. I therefore presume that thermostat strapped to immersion tank is working fine. However, when i attempt to heat water using electrical switch in kitchen, water is very over heated and immersion tank begins to shake and is quickly turned off BY MYSELF !

Thanks
Davie

[LES COWIE]

The electric immersion heater has its own built in stat, sounds like this is faulty. Shouldn't be a costly repair. Your boiler should heat up the water a lot quicker and cheaper than the immersion heater, this is generally only used as a stand by if the boiler is faulty

[The Heating Doctor]

Either the thermostat in your immersion heater is set to high or it is not working at all. The stat will be under the immersion heaters cover.

[dstewart]

on checking, my immersion element has hole where thermostat perhaps should be ( I presume removed by previous home owner) I will therefore replace element.
Thanks
Davie