Fantech 4-Room Silent Heat Transfer Kit - 200MM Fantech TD Silent In-Line Fan | 900 M3/HDistribute warmth silently and efficiently from one heated area into four separate rooms with the Fantech 4 Room Silent Heat Transfer Kit. Featuring the ultra quiet Fantech TD Silent 200MM in line fan, this system is ideal for homes that demand silent performance and effective heat redistribution. With an airflow capacity of 900 m3 h, acoustic insulation, and a vibration reducing motor mount, this kit delivers powerful yet whisper quiet heat transfer.