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".