Stelpro 540W Universal Heating Cable, Indoor, 141 Ft, 2.3 Amp, 240V/208V Features:

• 120V model, 3 in. wall clearance.
• 9 W/ft(squared) 4 spaces.
• 12 W/ft(squared) 3 spaces w/membrane or cable spacers.
• Installation with any uncoupling membrane, directly on concrete using the cable spacers (included with the product).
• Directly on plywood using the cable spacers, glue sticks included.
• Can be installed under most floor coverings, as long as the heating cable is covered with self-leveling mortar.
• Dual heating element, does not require cable route plans to include a return to the thermostat.
• Diameter suitable for use with an uncoupling membrane, heating elements sheathed in thermoplastic polyester.
• Optimal comfort by heating from the floor up, flexible and easy-to-handle.
• Complete set includes heating cables, glue sticks, cable spacers and installation guide.
• 25 year warranty.
• Dimensions: 15in (L) x 8in (W) x 15in (H).