I took apart knee wall in attic and removed all of the nasty stuff left behind from squirrels. The damage is mostly in the 110 wires and I can replace whole runs or splice in new wire in boxes. But the 220 wire going to water heater has about 8 inches of chewed wire and I don’t know if it is okay to put a junction box in the run to water heater. If I can’t put in junction box I have to replace about twenty feet of wire that I’d rather not.
I’m back tomorrow to fix the hole and start more wire repair.
Did I say I hate squirrel?
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How badly did they chew up the wire? If it's just insulation damage, and you can't see any copper shining through (other than the bare neutral), I'd just tape it up good, then maybe slide a slit piece of hose over the area.
First picture is 220 wire.
The second picture is group of wires. The taped wire is a fix from PO. I do not trust electric tape to fix wire. I would rather not pull 20 feet of wire to water heater, but I will do what it takes to fix this problem.
If you disconnect wires at the junction boxes and feed new wires through greenfield that may work. Are you sure they are squirrels? I have seen damage like that from rafter rats.
Chuck S live, work, build, ...better with wood