Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

View the thread, titled "Do I need a expansion vessel fitted to my system" which is posted in Central Heating Forum on UK Plumbers Forums.

P

Paul Jay

I have just had a water meter fitted and since been told I need a small expansion vessel fitted to my domestic hot water system as the meter will have a NRV in. I have also been told no I don't as my boiler is over 10meters away from the meter and any expansion will be taken up within the pipework, aproxx distance boiler is from meter is 20 meters. Boiler is a Worcester Greenstar Cdi combi. I would be grateful for any help with this question as i am now regretting having this meter fitted, Thanks.
 
It's in the WB installation instructions under 'Water Supply', e.g.:

"Where the mains water supply has a non-return, back flow prevention valve fitted, a mini expansion vessel (A) should be connected to the mains water inlet pipe (B) between the non-return valve (C) and the boiler (D) as shown opposite."

To reduce the potential for damage and leaks caused by overpressure, I suggest you don't use the 'pre-heat' function on the boiler until you have a mini EV installed.
 

Official Sponsors of Plumbers Talk

Reply to the thread, titled "Do I need a expansion vessel fitted to my system" which is posted in Central Heating Forum on Plumbers Forums.

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.

Thread Information

Title
Do I need a expansion vessel fitted to my system
Prefix
URGENT 
Forum
Central Heating Forum
Start date
Last reply date
Replies
1

Thread statistics

Created
Paul Jay,
Last reply from
Chuck,
Replies
1
Views
1,304

Weekly or Monthly Email Digest

Back
Top