On Fri, 24 Dec 2004 02:24:18 -0800, Martyn Pollard wrote:

Ed Sirett wrote:
I thought there was a condensate over flow detector (there is one on
the
C40 for sure) -- just checked -- not on the C25.

I'm sure they've modded units built this year to include a level switch
on the condensate trap.

I must download the latest manual.


Out of interest, I've never 'primed' the condensate trap before. Is it
necessary, as within a 30 minutes its full. As you say, when the flue
is inaccessible, its not possible anyway.

Well by the book the boiler is not room sealed until you do.
but I'll confess that I don't either but I do check the trap is full
before I leave.


Has anyone seen the 'judder' starting issue with the C25? Don't know the
exact cause, but Keston have a retrofit that appears to cure it. If I
get a report of this noise I just refer it direct to Keston and they
send an engineer out.

Ah 'buzz bombing' as I call it.
AFAIK after consultation with their technical dept it is due to the burner
being slightly weak. You really need a combustion analyser to make sure
that the CO2 values are in spec at both the minimum and maximum rates.




I'd be interested to know what others use as the jointing compound
between the flue spigot to the flue pipe.

This is not intended to be a demountable joint [1]. So I use bog standard
Black Swan brand 'solvent weld'.

[1] I'm nigh on certain that all of the flue joints (and air duct also)
are required to be permanent. Should the flue need to be taken from the
boiler then the flue spigot unit should be unbolted form the boiler.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html