EFCI is an energy-efficient system, which provides up to 20% extra energy saving through integrated thermal insulation. EFCI Insulation plate covered with aluminum and readymade groves for easy and fast installation of ECflex heating cables. The full covering aluminum effect ensures faster reaction time and an even heat distribution for the top floor. EFCI a special system for new floor installed on top of all existing floors or sub floors. The system can be installed on the existing tiles, wooden floors or concrete floors. The system can be used under nearly all types of floor surfaces. EFCI system under laminate, wooden or parquet floors – EFCI & ECflex must not be embedded in concrete or similar “wet” material, Dry installation only.