Best position for expansion vessel?

[os]

Hi

I am fitting an expansion vessel (along with prv and filling loop etc) to a fully pumped S plan heating system to convert the system to a sealed system from open vented.

The boiler manufacturer (Worcester bosch) recommends the it is situated in the return close to the boiler.

I have read other info that says it should be situated close to the pump suction would mean its in the flow.

Can anyone tell me which is the best location?

 

[fishpond]

I always fit on return close to boiler.

 

[os]

Thanks for the reply.

My other problem is that the boiler is in a (unheated) garage.

I have a frost and pipe stat to protect the boiler, but would this protect the expansion vessel, as presumably not much flow goes through it?

If i fitted the expansion vessel in the house would that be a problem as long as there is no restriction between it and the boiler?

Thanks again.

 

[ianmcd]

If i fitted the expansion vessel in the house would that be a problem as long as there is no restriction between it and the boiler?

Read more: //www.diynot.com/forums/plumbing/best-position-for-expansion-vessel.378523/#ixzz2ggNGHtix


Yes that is fine but it should be on the return and the closer to the boiler the better