Yes, it seems to be OK....reasons for such confidence a

- No real heat flow along the pipe that feeds the rads, just a small
bit of conduction

- Like you say all the rads would proabbly heat up

- And the man from BG tested it - with me watching!

J


Roger Mills wrote:
In an earlier contribution to this discussion,
wrote:


The basic problem is that some of the upstairs rads heat up when we
are running the CH on "water only" - from what I know of CH we have a
pump driven system, tanks in attic etc etc. Had new boiler and
cylinder installed about 18 months ago. I'm pretty sure we don't have
a non-return valve anywhere in the system, we have standard three port
valve near boiler and this is working fine.


Do you have any evidence to substantiate your statement that the 3-port
valve is working fine? This is often the culprit in cases like this -
although this would usually result in *all* radiators getting hot - not just
those upstairs.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!