On 28/12/2017 00:25, Dave Plowman (News) wrote:
In article ,
Jeff Layman wrote:
Depends on how much gas you use. I bought a Viessmann from Ebay at
well below the local prices, and fitted it myself. Paid for itself in
approx 4 years over the previous RS cast iron lump. But my gas usage
is higher than average.

Are you on the Gas Safe Register? Or are you considered "competent" to
fit a gas appliance? There still seems to be a good bit of confusion
around for anyone considering a DIY gas installation.

I don't give a stuff about 'Gas Safe' in my own house. And I defy any
inspector etc to tell it wasn't installed by a pro. Except those who only
know such things by a bit of paper.

Hear, hear.

If the gas rate at the boiler maintains 20 mBar and there are no leaks
then that's it. Checking flue gases for correct combustion is the only
tricky part of modern boilers.