In article ,
David wrote:
On Monday, 9 September 2019 14:11:49 UTC+1, Andrew wrote:
On 09/09/2019 00:12, Dave Plowman (News) wrote:

Did both of mine. It's only plumbing, after all. And some wiring.


If the latest one was a condenser, how did you check the flue gases ?.

The key thing is to follow the manufacturer's instructions fully. If a
flue gas analysis isn't part of the detailed installation and
commissioning instructions, then it isn't. For these Viessmanns, it
wasn't.

I dunno why so many are frightened of doing a self install. Assuming they
already have half decent plumbing skills. It generally saves a great deal
of money - far more than most DIY tasks that take the same sort of time.

And, of course, with a system boiler it's a great deal simpler than at one
time. Mine took longer as the flow share valve was originally on the hot
water cylinder. On the opposite side of the room. And I changed from open
vented to sealed. Just swapping a like for like design, much easier.

--
*A clear conscience is usually the sign of a bad memory *

Dave Plowman London SW
To e-mail, change noise into sound.