"Set Square" wrote in message
...
In an earlier contribution to this discussion,
Peter Ramm wrote:

On Sun, 06 Feb 2005 15:08:20 +0000, Lurch
wrote:

On Sun, 06 Feb 2005 14:51:32 GMT, "Cicero"
strung together this:

Join the 2 pipe ends with a 10mm straight end-feed connector and
push back into the cavity.

Er, don't do this.

Very informative and helpful - why not??

Probably because a lot of water will circulate through this loop - taking
it
away from where it is needed, and heating up the inside of the wall
needlessly.
--
Cheers,
Set Square

===================
The return from the 10mm loop will feed into the total return from the
system at the manifold. The volume of water in a 10mm loop is really quite
small in comparison with the total volume in the system so it's not likely
to have a serious effect on the overall return temperature.

A loose comparison could be made with a heated towel rail which has a much
greater volume than a 10 mm loop. It's pretty obvious that many people use
these as a sole heating source during normal Summer shutdown without any
harm.

I've used this method from time to time when redecorating rooms without any
ill effect and I prefer a flow to blanked off pipes which can create
problems of their own.

The original post (and follow-ups) suggests that the OP isn't very familiar
with his system so an acceptable compromise seems to be called for.

Cic.