I have read
(http://www.gasman.fsbusiness.co.uk/f...ed_systems.htm) that on a
fully pumped open vented system the cylinder return must be the last
conection before the boiler. Why is this? I have this system but the
cylinder return is 3 radiators with trv's into the heating return side.
Is this going to work or should I extend the return back to the boiler?
(which will mean taking the floors up again). Or is there an easier way
around it?

Thanks for any help


Harry