[cbush]

Actually it is a lot like working on an old Porsche. Lots of discovery learning with wiring.

I think if the house was wired for floor heaters, you should be able to find the other end somewhere near the electrical box. If you can, you can then put the baseboard back on, and cut off (mark for future reference) the other end.

I would also cut off and pull out as much of the wire behind the baseboard as you could just to make it neat.

If you can't find the other end, I tend to agree with GWN7. Fix it right or you would always worry about it.