In article ,
Lurch writes:
On Fri, 20 Apr 2007 22:14:34 GMT, mused:

Hello,

I am fitting TRVs to most of my radiators. I realise that I need to
fit a pressure valve so that the pump does not pack up if all the TRVs
close.

If you're only fitting TRV's to most radioators then you don't have a
problem.

Leave them off the radiator(s) in the room where the roomstat is,
but fit locksield valves at both ends so people can't turn that
radiator off.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]