Retrofitting an extra coil on a HW cylinder

niallo32 · 07-07-2011 7:24pm #1

I have a gas boiler and am putting in a Stanley stove with a boiler too.

I've had two quotes so far - one plumber has told me he can put a second coil on the HW cylinder, while the other plumber says this is not possible and is quoting €850 for a new cylinder.

Is it possible to put a second coil on it and is it worth the saving or should I pay the extra money to get a new dual coil cylinder?

Thanks..

JohnnieK · 07-07-2011 9:24pm

It is possible to put one in and I only knew of one fella that done it and he is dead now. It very hard to do but you must have a good man there if he is able to do it.

heinbloed · 07-07-2011 10:49pm

Can you use the existing heat exchanger with both thermal sources? If the pressure on both flow pipes ( gas boiler + stanley stove/boiler) matches it should be possible.

07-07-2011 11:07pm

heinbloed wrote: »

it should be possible.

No, it's not.

niallo32 · 08-07-2011 7:46am

Thanks everyone for the replies - whats the consensus so?

Should I pay the extra money for a new cylinder or will the extra coil work fine?

08-07-2011 8:18am

New cylinder:)

08-07-2011 9:16am

Might be a better idea:

http://www.solarcoil.co.uk/products.html

DoneDL · 08-07-2011 9:26am

I would change the cylinder, consider a triple coil as you may want to install solar in the future.

Stove Fan · 08-07-2011 11:52am

I would go for a new cylinder:) I bought a twin coil 36 inch by 18inch copper green insulated cylinder for around 190 euro. Its cheap so may not last yonks. I bought the twin coil if we ever wanted to add an oil boiler as we just use solid fuel heating.

James.:)

niallo32 · 08-07-2011 6:40pm

Thanks lads - what ball park would I be looking at for a decent sized cylinder?

Retrofitting an extra coil on a HW cylinder

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