In article ,
Paul Roman wrote:
I notice from the central heating diagrams that 4 (and sometimes 5)
connections need to be made between the junction box and the programmer.
Is there a particular cable for this or is it usually knocked up with a
couple of runs of twin and earth?

If it was situated so you could use flex, then a wholesaler will do
multicore flex. Think Maplin do too. But if it's situated some way off,
then suitably marked TW&E will be fine. Or Triple & E as used on two way
lighting.

--
*Nostalgia isn't what is used to be.

Dave Plowman London SW 12
RIP Acorn