Electric boilers

[rhinosaw]

Are Electric boilers worth considering in flats? Potterton 12kw in particular, about £500.
Thanks for any advice

 

[ianmcd]

Depends on the electrical supply to the flat, I am fitting that exact model next week, they used to come with a 5 year warranty, but only come with 1 year now, very expensive to run, they come in 6,9, and 12 KW models, depending on the size of the flat you will probably get away with a 9 KW, if you are going to fit an electric shower too you need to take that into consideration, you might need to fit a shower relay.

 

[muggles]

As Ian says, depends on whether the electricity supply can keep up, and who's paying the bill, because they're horribly expensive to run

 

[rhinosaw]

Thanks both for your input, the Potterton I saw had an output of 12kw and ran on about 4.5 kw , Possibly I read that wrong. Is there an electric boiler at about 4-5 kw?
Thanks

 

[muggles]

https://www.plumbnation.co.uk/site/...FR46V32d3o7oQW3NBpfu4_A8CgbeKiUxoCqOEQAvD_BwE

 

[rhinosaw]

Thanks for that Muggles. So the output is 6kw, my old vented system is 12kw, I presume the 6kw is going to struggle.
What would happen with 7 rads on 6kw, would they just not heat up properly.?
Thanks

 

[JohnD]

Energy from electricity costs about four times as much as energy from gas.

I gather you already have a gas boiler.

What prompts you to quadruple the energy bills?

 

[rhinosaw]

Ok, that's a good point, I didn't realise elec boilers were 4 times as much to run. Thanks

 

[muggles]

Thanks for that Muggles. So the output is 6kw, my old vented system is 12kw, I presume the 6kw is going to struggle.
What would happen with 7 rads on 6kw, would they just not heat up properly.?
Thanks

I showed you what you asked for (a boiler around 5kW). If you'd asked for a 12kW boiler, I'd have given you a link to that...

 

[ianmcd]

Thanks both for your input, the Potterton I saw had an output of 12kw and ran on about 4.5 kw , Possibly I read that wrong. Is there an electric boiler at about 4-5 kw?
Thanks

No you have read something wrong electric boilers have elements rated at 3kw, so a 6KW has two elements, a 9 KW 3 elements , you get the idea, when the unit first comes on it will come on at full, then as your radiators and HW heat up the elements drop out one at a time untill you only have one to keep the water hot, or cut out all together if the system is completely satisfied

 

[rhinosaw]

Ok, thanks , I understand a bit more now.
Also , I believe u can use an existing vented system or convert to pressured system.
If sticking with vented does the f&e tank still have to be situated higher than elec boiler as with gas boiler? Probably a stupid question but my f&e tank is level with existing boiler and can't go any higher.

 

[Gasguru]

Have a look at the ASA...you'll find the electric heating industry continually get reprimanded for false claims.

 

[muggles]

Yes, your F&E needs to be above the boiler, or the boiler won't fill with water

 

[rhinosaw]

Ok thanks, so if sealing the system is the pressure vessel outside the elec boiler or can it be either inside or outside boiler like gas.

,

 

[ianmcd]

you are daft moving from Gas to electric if you already have a gas boiler