Correct me if I'm wrong, but I thought you must not fit a TRV to the
radiator in the room/area where your CH thermostat is located for obvious
reasons.

Martin


"Velvet" wrote in message
ups.com...

Velvet wrote:
(and snipped)
Velvet

Right, another idea. The bathroom rad's definitely the first to heat
up, and the only one without a TRV. What about... shutting off all
other rads, and closing the bathroom one in steps, till just before the
boiler starts threatening to kettle. That'll leave me with the minimum
flow rate (there is nothing in the manual for the boiler about this at
all!) - and I can then balance the rest of them (albeit they will be
further away from the boiler than the bathroom rad and thus
theoretically should have the LSV's opened wider than the bathroom,
which appears to mean pretty much wide enough to fit an articulated
lorry through)?

Oh, and I've read BOTH balancing faq's. I think a good thing would be
to simply reduce the pump speed, but I can't find anything in the
manual about that being possible to do on this combi (it's a
non-condensing 5-ish years old Saunier Duval SD30e, which is apparently
a Vaillant in disguise?) - it just says restrict the flow using a valve
across flow and return.

At least setting it all back how it was when I started it easy, I
suppose LSV's to fully open - no faffing about writing down number
of turns needed to close them before I started fiddling

Velvet