Even in' all!
Im planning a heating radial upstairs as a fail safe for not taking the UFH upstairs.
I want ant to run a 4 core cable as a few of the electric radiator systems use a 4th core for signal control. However you can't get standard 4 core cable in 2.5mm solid copper as far as I can see so can I use something like this stranded cable for the install?
(Random link selection from google)
http://www.builderdepot.co.uk/2-5mm-4-core-pvc-flexible-cable-50m-drum.html?gclid=EAIaIQobChMInrLGpdeY1gIVBpPtCh1izAOhEAQYByABEgLvNvD_BwE
Ta!