We installed 60' of SNOW MELT MAT in 2018.
It was placed under our flagstone walkway to the entrence door of our home. We are so pleased we did -- and it is still working perfectly. I did the labor of arranging the configuration, and covering the Mat with sand for protection. I also ran the Mat wiring and the electric wire - but had a licenced electrician make the final connections, especially to the breaker box. This is a 10 Star product!