Quick Menu Installation Can the cold tail lead of my FOIL system be extended? Connecting Your Foil Heating System General installation notes for the Foil Heating System What to do When Installing FOIL on a Concrete Slab Installing the FOIL System Under Carpet Foil Floor Heating Installation video Troubleshooting Installing the Sensor Probe Check the resistance readings of your heating wires Is There Enough Power Being Supplied to Operate the System? Is the Floor Heating System Wired Correctly? Can the cold tail lead of my FOIL system be extended? Yes, your electrician should be able to extend the cold tail lead using Romex cable.