On 23/12/2010 10:40, cynic wrote:
On Dec 22, 6:02 pm, wrote:
I posted about this a while ago, and the plumber came round and
diagnosed a faulty flue shroud. Water was coming out of the flue and
forming a pond underneath. The shroud has now been redesigned with a
'bubble' to force water/steam back down the flue. I still don't follow
how that volume of water could follow such a convoluted route (1m
vertical, 3m horizontal), but still.

Just been outside and seen this:

http://www.ifyoucan.org.uk/pages/Boiler.html

Obviously (?) the flue joint has failed, but this seems like a bonkers
amount of water to be ejected? I'll let the plumber know about this, but
any opinions welcome.

Rob

The flue through the wall in picture 1 appears to be an Ideal fan flue
version to which someone has added a section of pushfit waste pipe to
extend the flue gas discharge point to where the plume will not create
a mess. I have just googled for ideal plume management kit without
success so there is a distinct possibility that your installer has
invented his own version.


I think you're right. He's just been back and said something about
sections of pipe being too short, and he's just (this minute) replaced
it, along with the shroud at the flue exit.

I would telephone Ideal Boilers in Hull for a definitive answer as to
the authenticity of the kit you have fitted to your boiler.


I take your point, but frankly I don't want to drop him in it. and he
does *seem* to know what he's talking about.

IF it is a manufacturers kit the pipe should run up hill all the way
from boiler to atmosphere and the joints should not leak.
If this pipe is not an ideal product then you need to be contacting
trading standards and gas-safe as only approved flue designs should be
used with any boiler.


Mmmm. Again, see where you're going. If I have more bother I will ask
him directly what it is he's fitted/I've paid for, and whether it is
compliant.

The diagonal pipe is quite likely to be the condensate pipe but may
need lagging.


Yes, it is the condensate pipe, and it has a suspiciously horizontal 2m
run. We have both stood and looked at it, and agreed today that it could
be a problem. But it appears unrelated to the current issue.

The rabid enthusiasm for installing condensing boilers seems to be
coming unstuck in our present winter conditions when the boilers heat
is most needed.

These things ought to be working properly in -20, never mind -5.

Thanks for your insights.

rob