The system has zero EMF and offers a lifetime warranty. Thermosoft's 1/8-inch, contractor-grade heating mats are designed to minimize floor height and lay flat for quick installation. Mats can be cut and turned to fit any space. The 1/2-inch mat grid allows penetration of thin-set or self-leveling cement for one-step installation. Only one end of the mat needs to be connected to power. An inner foil liner eliminates electrostatic interference with appliances and telephones.