Anyone have any experience with Pipe Heating Cable for sewer line pipe protection?

[Elias Hubbard]

Does anyone have any experience with using a pipe heating cable for a sewer line?

I am running a new sewer line to 520 sq ft detached garage that I am converting into a rental space.

I'm concerned about:

1. What if a tenant potentially being able to unplugs the heating cable.

2. What if the power goes out?

3.  What if the outlet fails?

4. How will I know if the cable is functioning or stops functioning?

5. It will be more expensive than just running pipe lower in the ground.

Dug about 2 feet down at the start of the trench for the sewer line and would have to dig another 2 feet down.