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I'm having to use the rather old immersion heater for hot water as my DHW from the boiler has a leak.

Can anyone tell me what type of immersion heater this is? see photo. I assume it's non-thermostatic but that it does have some kind of safety cut-out? Does that mean it will heat the water to 75degreesC!!!!

All it says on the case is Redring and BS3456. imm heater.jpg
 
I`m not sure you`re allowed to change that yourself (sorry to say).
 
Don't want to change it as it's just a temporary measure. Just want to make sure it's safe and won't overheat.
 
TBH there are a lot of photos I cannot open.
A lot say I don't have permission.
 
Back on topic.

That's not a safety stat that's the control stat.

It's either fixed temp or the adjustment is on the side where it's pushed into the pocket.
 
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not safe to use
 
OK. Thanks. Presumably if its got a thermostat then that will switch off at preset temp eg 75°? I only want to use it for a few days and was planning on setting the timer for only 2 lots of half hour but curious as to what sort of temp (if any) it would switch off at.
 
Sorry I cant see the pic , but the cylinder should not be set above 60 ( through a control thermostat ) a thermal store can go higher . It MUST also have a highlimit thermostat that operates if the control stat fails , and they do .
Some , high and control stats are combined as one
 
Until you are sure that it has a thermostat providing temperature control DO NOT USE the immersion heater that looks like a standard copper cylinder, if the water boils you will know all about it and it could very well kill you or yours !!!
 
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Thanks for taking the time to comment. Have tried to attach photo again as u need to see it really.
 

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What is the immersion installed in ?

As there is no thermostat pocket in that element head where is the stat located?
 
Its in a DHW copper cylinder and has been there since the house was built in 1970s. Its a big estate and I guess all the houses will have had the same. I'm only using it as an emergency for a few days til my c/h pump is fixed.

I realise it doesn't have an adjustable thermostat but curious to know if it has a safety cut off or fixed stat given its age and BS3456. From the photo it looks as tho the live passes thro some kind of terminal before going to the element so I'm assuming that it has some kind of fixed stat (75oC?) or safety cut off (95oC?)
 
I would not assume anything to me it still sounds like it does not have temperature control, let along a high limit cut out. The wiring looks like the stat connection has simple been bypassed.

You are taking a great risk even if you are only using it as a temporary heat source.
 
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