ThermaWire’s 4mm (3/16 inch) diameter twin conductor heating cable delivers consistent and energy-efficient floor warming in concrete installations. Engineered to operate at 4 W/F with a maximum of 15 W/SF, this cable provides reliable heat distribution across areas ranging from 67 to 84 square feet when embedded in concrete. Ideal for garages, basements, and other concrete-slab areas, it ensures comfort even in colder zones. https://www.thermawire.com/the....rmawire-120v-735w-th