Combi Flue dripping


Postby Freddyson » Sat Oct 18, 2008 4:14 pm

I've had a Vaillant Ecotec Plus Combi boiler installed a few months ago.
Unfortunately the plumber who installed it has gone back to Poland.
The problem is that the flue drips water constantly and it is gradually soaking into the brickwork of the wall.
I've taken the end off the flue and checked the level. It slopes slightly downwards towards the outside of the house. Is this OK?
I've also put a container under the condensate outlet and I don't seem to be collecting any water in it.
Is water going down the flue instead of the condensate pipe?
If this is the case, can I just lift up the flue pipe a little to solve the problem?
Other than this the boiler is working great and the plumber seemed to do a good job on it.
Thanks
Freddyson
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Postby htg engineer » Mon Oct 20, 2008 7:16 pm

With Condensing boiler the flue has to rise away from the boiler, this allows the condensate to run back over the secondary heat exchanger.

The flue elbow is normally angled - so how he got the flue to fall from the boiler a mystery. I would get it checked out and put right, if there is fall on the flue from the boiler, then at least one joint will not be made properly.

Why do you call him a plumber, he should be a RGI ?
CORGI registered ??? (I bet not).


htg
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Postby Freddyson » Tue Oct 21, 2008 11:03 am

Thanks htg engineer. I'm going to get it checked out.
Regards
Freddyson
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