=20
> So you are looking for a temperature control valve like fitted to central
> heating radiators - not common in NZ, but commonly used in the UK?
>=20
> E.g. http://www.diy.com/search/results/?question=3Dradiator+temp+valve
>=20

Refining search term made one easier to find ...

http://www.diy.com/departments/honeywell-white-electronic-radiator-controll=
er/178347_BQ.prd

This one is a complex one having an electronic display.



--=20
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