On Thu, 31 Jul 2003 18:49:33 +0100, Grunff wrote:

Zetor wrote:
Hi,
I just had a new combi boiler fitted by 2 extremley efficient gas
fitters, they did a really good tidy job, on talking to them about the
use of plastic pipes I ask why they still use copper, they said that
they still use copper for the central heating pipes as it is far
better then plastic as they didn't believe plastic was as air tight as
a good soldered joint. They had even replaced boilers of only 2 years
old which had corroded due to poor installtion and extensive use of
plastic pipes. Does anyone know what conditions air could get into a
sealed system like me combi? I have one radiator which is plumbed in
plastic and now wonder if I should maybe get it piped in copper.

As long as it's plumbed with plastic pipe which has an oxygen
barrier, it will be fine.

I plumbed the whole house in plastic nearly 2 years ago, and
haven't had any problems with air in the system.

I'd say they use copper because they can keep the costs down, your
paying for their labour so they wouldn't want to use something that
took half the time to fit would they? Or am I just being cynical...
;-)

And if it was as rubbish as some people seem to make out the
manufacturers would have been sued out of business surely?

Mark S.