Am I right in saying that the correct technical term for "trying to get your living room the same temperature as the bedroom" is "balancing the central heating system"? If so, or indeed, if not, does anyone know how to go about it. (Probably never achieve this completely, as living room is 2x size of said bedroom, is furthest from the boiler, and north-facing, but currently the former is too cold, and the latter too hot...).

[rab] I'm not ignoring you, I don't know the answer.
[Rosie] Yes, Bourke is about 650Km northwest from me (as the crow flies). 93% of NSW is officially drought affected. The remaining 7% would be the northeast - coastal strip - of the state which is always much wetter than the rest (there are some beautiful rainforest areas in that region).
Bourke is a genuine outback town and within that classification is fairly big - pop. around 4500 (though this includes outlying residents in a 40-odd thousand square kilometre shire area). There's a bit about the place, and some very basic weather stats, here.

I have just successfully introduced two groups of friends to each other, both made initially through the net, and both based in Oxford. How satisfying :o)

(rab) If your radiators are individually thermostatically controlled then simply adjust them. If not, and this sounds more likely, they should have two valves, one at each end, one being a normal on-off valve, the other, hidden under a plastic cap, being a control or balancing valve. Prise off the plastic cap and adjust the control valve using a small adjustable spanner or some other tool. This will limit the flow through that radiator. If all this isn't possible simply turn off the rads in the bedroom until you need them. This will boost the flow through those in the living room. All this is based on my own system, which is steam age and installed in 1971. It still works very well.

(Dujon) Thanks for that. Bourke is not as dry as I would have thought, with 300 mm a year average though at those temperatures it would count as less than if the same amount fell in a cool climate. Parts of Essex have only about 520 mm a year but no-one would call it a desert, except culturally maybe. Woo! 'ark at 'im!