On Fri, 10 Sep 2004 08:17:54 +0100, stuart noble wrote:


Ed Sirett wrote in message ...
1) See if you can download the manual for that particular model this is
the difinitive answer.

2) It will depend on the flue type and the rating of the boiler.
but typically this is 75mm for a typcial fan assisted flue/duct.
(I ues that must be clear minimum and not
between centres as that would be very close).

3) The issue might not be so much about heat from the flue but
restricting the path for the air intake.
OK. Thanks. I'll talk to Baxi, but even 75mm allows me to raise the boiler
15".

I can picture it now. The old boiler had a big balanced flue hole and the
installer reused the hole for the flue/duct.

Usually when I come across this situation the old hole is just where you
want to put the fixing for the new 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