Unvented hot water pressure build-up problem

Nov 15, 2006 117 Replies

Liar, Cheat, Fraud.

This plantpot must be fascinating for a shrink.

This plantpot is avery sad case indeed.

Nice of you to quote only your own posts in a reply. Highlights the appalling grammar and spelling.

Another plantpot appears.

A sad case. A very sad case. I now believe everything I read on that current thread ion him. Very sad.

They could have a whole conference on this plantpot.

obsessive disorder

Liar, Cheat, Fraud.

message

Liar, Cheat, Fraud.

I wonder what the official name is for this plantpots condition.

obsessive disorder

message

obsessive disorder

Plonk

Thats both of you now.

Then you won't see me poking my tongue at you.

In the end, owing to lack of space to do anything more ambitious, I have fitted a NRV to the hot water feed from the cylinder. At least this goes some way to stopping the higher pressure mains building up the pressure in the cylinder.

I will fit a PRV in the cold feed to the shower as/when I can get access to the appropriate pipe (there's not really any chance of connecting to the balanced cold feed output from the cylinder PRV). In the longer term I might replace the unvented system with a thermal store (with internal heat exchanger, owing to lack of space).

Thanks for all the advice.

Andrew

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