Heat resistant flex

[marsaday]

i need some 5 core heat resistant flex to go:

from room stat to UFH manifold 8m

UFH manifold to boiler 20m

should i get 2.5mm, 2mm, 1.5mm?

 

[andy212]

Hi you can use 0.75mm if its for controls like the room stat.and it shouldnt need to be heat resistant.

 

[marsaday]

i have been told by the electrician to get heat res. i thought if you are going into the boiler it needs to be heat resistant?

 

[JohnD]

Is it carrying heating current, or is it just for a thermostat?

 

[marsaday]

it is communicating with the boiler and the manifold for the UFH and then on to the room stat for the UFH. it is not carrying a power supply for the manifold. this is provided seperatley.

 

[JohnD]

1.5mm will be ample.