Angela wrote:
definitely going to spend some time in doing this. Where can I get
the radiator thermometers from?

Plumbworld, and they're quite nice actually. Get a pair, so one for each
end.
Go to Plumbworld.com Tools Gauges Thermometers
http://www.plumbworld.co.uk/acb/show...ctGroup_ID=135

Clip on bi-metallic thermometers are £4 each plus delivery at £3 for orders
under £300.

Personally I like their combination temp/pressure units for use in the
boiler cupboard.

--
Toby.

'One day son, all this will be finished'