"alan" wrote in message
...

Just because it is substandard does not mean you have to repipe it,

It DOES!!!!!

The tech guy gave his opinion that cookers
would be ok to 14mb, probably
the same for boilers, especially modern
modulating,

NONSENSE!!! Some Ideal pre-mix modulating boilers can operate at 14 mb
minimum, so they say. In reality they cut out, bang explode, etc, etc.
Modern modulating boilers like the pressure way and the supply constant.

but he would not firmly
give this figure for boilers as there are too many variances.

The only real danger is cookers and
some gas fires on a low peep can be
extinguished by the boiler kicking in,

That is why boilers should always be on a dedicated supply back to the
meter.