Guys,
Been reading these pages and you've got me concerned. A couple of months
back I embedded some 10mm copper pipes in a wall for my new radiators.
I used aluminium kitchen foil to cover the pipes before filling the voids
with interior filler. I am am now about to tile over this for one rad,
and fit kitchen cupboards over another filled area. I have seen
some people mention that copper + aluminium = corrosion. What corrodes?
The aluminium or the copper? I covered the copper pipes for about two
feet in this fashion. Should I remove this aluminium foil? Would what I
have done cause problems down the line?

--
/home/steve/new file

On Sun, 07 Jan 2007 08:15:45 -0600, Kaiser Sose wrote:

|Guys,
|Been reading these pages and you've got me concerned. A couple of months
|back I embedded some 10mm copper pipes in a wall for my new radiators.
|I used aluminium kitchen foil to cover the pipes before filling the voids
|with interior filler.

|I am am now about to tile over this for one rad,
|and fit kitchen cupboards over another filled area. I have seen
|some people mention that copper + aluminium = corrosion. What corrodes?
|The aluminium or the copper? I covered the copper pipes for about two
|feet in this fashion.

Copper corrodes aluminium.

http://www.terrific-scientific.co.uk...orrosion-7.htm
So we can confidently predict that if aluminium and copper were joined
together in the solution, the aluminium would corrode, and the copper would
be protected.

| Should I remove this aluminium foil? Would what I
|have done cause problems down the line?

No you will lose the aluminium foil eventually.
--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.

On Sun, 07 Jan 2007 08:15:45 -0600, Kaiser Sose wrote:

Guys,
Been reading these pages and you've got me concerned. A couple of months
back I embedded some 10mm copper pipes in a wall for my new radiators.
I used aluminium kitchen foil to cover the pipes before filling the voids
with interior filler. I am am now about to tile over this for one rad,
and fit kitchen cupboards over another filled area. I have seen
some people mention that copper + aluminium = corrosion. What corrodes?
The aluminium or the copper? I covered the copper pipes for about two
feet in this fashion. Should I remove this aluminium foil? Would what I
have done cause problems down the line?

It's unlikely to be too much of a problem inside the house and away from a
damp environment.

--
the dot wanderer at tesco dot net

On Jan 7, 3:10 pm, The Wanderer wrote:

It's unlikely to be too much of a problem inside the house and away from a
damp environment.

The walls will always contain some moisture (electrolyte) and so set
up a galvanic corrosion cell between the aluminium anode & copper
cathode. Seen similar (copper pipes, steel pipes, steel
reinforcement).

As to whether it will become a problem, I have no idea.

On 7 Jan 2007 07:20:52 -0800, Aidan wrote:

On Jan 7, 3:10 pm, The Wanderer wrote:

It's unlikely to be too much of a problem inside the house and away from a
damp environment.

The walls will always contain some moisture (electrolyte) and so set
up a galvanic corrosion cell between the aluminium anode & copper
cathode. Seen similar (copper pipes, steel pipes, steel
reinforcement).

True. Having had many years experience of the problems presented by bimetal
joints exposed to the elements, I am aware of just how much of a problem
corrosion can present, but it ain't likely to be too much of a problem in
the situation mentioned by the OP.

As to whether it will become a problem, I have no idea.

No, and nor do I, but I can't see there being much likelihood of severe
corrosion in the circumstances I mentioned.

--
the dot wanderer at tesco dot net

On Jan 7, 4:48 pm, The Wanderer wrote:

I'm baffled why people still embed copper pipes in walls and screeds,
wrapped in anything.

Plastic PEX pipe inside a bit of conduit pipe, problem solved. Much
neater.

http://www.bes.ltd.uk/products/154.asp
Only likely problem is if rodents can get access to the plastic, then
they may gnaw at it.

Failing that, wrap the copper in Denso tape.

Dave Fawthrop wrote:

http://www.terrific-scientific.co.uk...orrosion-7.htm


Fabulous site!

On Sun, 7 Jan 2007 21:52:25 -0000, "Steve Walker"
wrote:

|Dave Fawthrop wrote:
|
| http://www.terrific-scientific.co.uk...orrosion-7.htm
|
|
|Fabulous site!

Google Advance Search is your friend.
--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
method of accessing usenet. GG subscribers would be well advised get a
newsreader, say Agent, and a newsserver, say news.individual.net. These
will allow them: to see only *new* posts, a killfile, and other goodies.

"Aidan" wrote in message
ups.com...


On Jan 7, 4:48 pm, The Wanderer wrote:

I'm baffled why people still embed copper pipes in walls and screeds,
wrapped in anything.

Plastic PEX pipe inside a bit of conduit pipe, problem solved. Much
neater.

Gas pipes can't be plastic.

On Jan 8, 3:43 pm, "Doctor Drivel" wrote:

Gas pipes can't be plastic.

The OP said;

"A couple of months
back I embedded some 10mm copper pipes in a wall for my new
radiators."

Do you circulate hot gas through your radiators, Drivel?
An interesting concept, but then you seem to have an excess.

In message ews.net,
Doctor Drivel writes

"Aidan" wrote in message
oups.com...


On Jan 7, 4:48 pm, The Wanderer wrote:

I'm baffled why people still embed copper pipes in walls and screeds,
wrapped in anything.

Plastic PEX pipe inside a bit of conduit pipe, problem solved. Much
neater.

Gas pipes can't be plastic.


When my brother moved into his last house the cooker's gas supply was
via a bit of hosepipe and a couple of jubilee clips

So, they can - but not legally


--
geoff

"raden" wrote in message
...
In message ews.net,
Doctor Drivel writes

"Aidan" wrote in message
roups.com...


On Jan 7, 4:48 pm, The Wanderer wrote:

I'm baffled why people still embed copper pipes in walls and screeds,
wrapped in anything.

Plastic PEX pipe inside a bit of conduit pipe, problem solved. Much
neater.

Gas pipes can't be plastic.


When my brother moved into his last house the cooker's gas supply was via
a bit of hosepipe and a couple of jubilee clips

That is Corgi for you Maxie.