Wärme Technik is a German brand that offers a range of heating solutions, including heating cables, mats, and thermoregulators. One of its products is the Wärme Twin Flex Cable, a thin two-core resistive cable that is ideal for underfloor heating systems. This cable has a heating area of 2.8-3.5m² and a power of 16 W/m (at 230V) and comes with a 20-year warranty. It is easy to install in tile glue (1-2 cm) or in screed (3-5 cm) and includes a complete set of cable, mounting tape, and corrugated pipe. The cable has a diameter of 3.5 mm and a laying pitch of 7.5-12 cm, and has internal insulation made of fluoroethylene propylene, external insulation made of PVC, and a protective screen made of aluminum tube. The Wärme Twin Flex Cable has a maximum working temperature of +65°C and a minimum bending radius of 17.5 mm.