Amber Underfloor Heating Cable - All Sizes Amber heating cable is ideal for small or large installations and awkward areas within a property where flexibility is required. Amber loose cable underfloor heating - all sizes available (from 10m to 165m) - select from the drop-down box above The cable is able to provide a power output for either primary or secondary heat, depending on the cable spacing. Compatible with most common floor finishes: tile/stone, carpet, vinyl and wood. Can be installed directly onto the floor or used with the Amber Decoupling Membrane (available separately). The cable easily clicks into the de-coupling membrane, making it easy to achieve the desired spacing. Guaranteed with Amber's 12 year warranty. Includes full installation instructions, but don't worry we offer full technical advice should you have any questions.