Thanks very much for your help, I'll see if I can get a maxitwin or two for the houe and take it from there as I have already just today replaced the radiator which is how the problem has come to my attention.
Cheers
Most of my old radiators have inner plastic tubes (c. 10-15 cm length) inside them connecting them to the TRV; how essential is it to re-insert these when re-connecting a radiator (having been power-hosed once removed to remove gunge build-up) and can they be replaced ? if so, what are they...
Most of my radiators are old and they each have two pipes into the TRV rather than one; as most of the B&Q/Homebase-type replacement TRVs only seem to cater for single pipe inputs to them....
(i) can mine be converted to accommodate single pipe input :?: ;
(ii) if so, where can I get these...