I'd think that renewing the whole run was the safest bet, rather than
joining it, but yes, maybe go wireless, but I do have some reservations
about those from houses I've visited where they only work in some places or
stop working for no apparent reason. Bit of a black art radio in this world
of interference and congested bands.
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"John" wrote in message
2.236...
Jimk wrote in
o.uk:

The programmer on my heating etc is in an inconvenient location &
I want to move it.

The preferred location would involve an approx 8m cable run. I
have some 5 core 0.75mm2 flex.

Can I just stick it on the end of the 5core flex, i.e. extending
the current wiring?
Any electrical or other gotchas to be wary of?

TIA

Can't you go wireless and be more "future proof"