On Wed, 22 Feb 2006 07:18:32 -0800, Boiler man wrote:

Greetings.
I would like to give all members a big apology because the incident
about the Keston c25 was a hoax I just wanted to see what would have
realy happend.
P.S.I still have my old block-the BAXI.

Nice try, but you were soon rumbled. You might have got further if you
had stuck with the original story. The more I think about it the more I
reckon it would be just about impossible to get black smoke out of a
premix burner flue. The flame would go out if the mixture got too rich.
Admittedly running for a long while with mixture too rich would lead to
sooting.


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://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
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html