It seems no matter what you will have to open a couple walls but might not be as bad as you think.
Getting wire from attic to basement.
I replaced an old flood.
Contrary to what i was told there wasn t a chimney at all but the home owner had the house built for him and showed me the plans that had an hvac chase added into the design from the basement to attic.
If you have a rigid line then you can open up one wall on second floor to drill to attic and first and then drill up to first from basement.
I recently installed a motion sensored security light in the back of my house.
From the attic lower the fish tape all the way to the basement connect your wire and then pull it back through.
Well getting the wires up to the attic was easy.
Running wire from attic to basement.
Split level home wiring goes up from the panel to an attic wood panel the length of the house then down to the circuits.
For a chimney flue the wire should be 12 from the flue.
All i had to do was take a piece of 3 4 pvc pipe into attic and extend down the chase until i hit the foam at second floor and.
The presumption is that the cable run will be looped from one box location down or up into a basement crawlspace or an attic then across floor joists before entering the stud cavity where the next box is located.
My home was built in 1941.
Secure the wires tight using wire staples at both the bottom and top of the run to make sure that the wire doesn t bow in the middle and get close to the flue.