Bare wire heating system gives fast heat up time, really?

[ericmark]

Was looking at a problem getting enough DHW to a sink, and it seems one of these has been fitted, I was looking at the picture to see where powered, as it seems a lot of work to bring in a 4.4 or 6 kW supply, but I am hoping the bare wire is not what I think it is? I would have expected to find a mineral insulated nickel chrome heating elements not bare wires. Has this really got Approvals CE, UKCA, WRAS?

 

[mikehammer69]

I don't think there's any shock risk if earthing and disconnection are in order same as any appliance

Seems any risk of tripping depends on the IR conditions present with the water ?

 

[SUNRAY]

Was looking at a problem getting enough DHW to a sink, and it seems one of these has been fitted, View attachment 409128I was looking at the picture to see where powered, as it seems a lot of work to bring in a 4.4 or 6 kW supply, but I am hoping the bare wire is not what I think it is? I would have expected to find a mineral insulated nickel chrome heating elements not bare wires. Has this really got Approvals CE, UKCA, WRAS?

Remember Dolphin showers?

 

[Echo the husky]

Remember Dolphin showers?

Loads still in use! Don't forget electrode boilers either, often 3 phase!

 

[ericmark]

I would have expected them to taint the water, but I don't drink the water from my shower.

 

[BS3036]

You shouldn't drink from the hot tap either.

 

[crystal ball]

Loads still in use! Don't forget electrode boilers either, often 3 phase!

A factory I used to work in used electrode boilers to generate steam to condition leather, every so often they would trip the RCDs, a few spoons of salt used to cure them

 

[Echo the husky]

I would have expected them to taint the water, but I don't drink the water from my shower.

Probably not great to drink from it. You can buy kettles that heat water with mains into 2 stainless steel strips. I did it with mains and 2 tea spoons a few years ago, I probably drank it at the time but don't remember any specific taste. I wonder if that's why I'm going bald...

 

[JohnW2]

Probably not great to drink from it.

I doubt there is any problem. The solubility of nickel-chrome in water is so low that I cannot find any reference source that even attempts to quantify it - all the ones I've found simply say "insoluble in water".

 

[ebee]

Remember Dolphin showers?

Wow were they technically ahead of their time ? A great big rocker switch inside the housing and operated via a pull cord attached to the rocker and a simple pull left or pull right to switch the rocker on or off.
A space age design!!! (Often wired as a spur from the back of a bedroom socket)