4mm or 3/16 inch diameter twin conductor heating cable. 4.0 W/F max 15 W/SF. Sizing guidelines: Under Wood: 17-21 SF | Under Tile: 14-18 SF | Cold Areas: 13-16 SF
10 years from the purchase date. It covers repair or replacement up to the original cost of the cable. Follow the link to learn more about the product. https://www.thermawire.com/pro....ducts/ThermaWire-240