Wiring – Thermostat wiring splice

thermostatwiring

I need to relocate a thermostat and have the additional wire needed but I am not sure of the ideal way to "join" the cable sections.

Will using wire nuts and zip tie be good enough?

Best Answer

A butt splice connector, or twist-on wire connector would be fine. Just make sure you use connectors that are designed for the size, and number of wires being connected.

Butt splice connector
Twist-on wire connector


Technically, you should probably either pull all new wiring, so that it's continuous from HVAC to thermostat. Or put the connections in a junction box, that is left accessible.