This is a 30 FT Cable that will cover 30 ft of water line. It runs parallel to the water pipe, so the entire 30 ft of cable works for 30 ft of pipe.
I don't see why not. Mine is partially laying underground and I haven't had any issues. My suggestion is that you don't let the black cord touch itself. That happened to me and the cord shorted itself out.
No it will not work.
Yes this can be used to protect your plastic pipes
Yes you can over wrap the cable just do not cover the thermostat
The thermostat is built into the cable and cannot be replaced.
You can see it on the picture. It's the orange rectangular bulge with the black round piece on it.
It probably low 1.8 Amos and a total of 210 watts.
Yes great product
You would have to buy some type of wrap so it covers around completely