Fantech 4-Room Standard Heat Transfer Kit - 200MM Fantech Jetline Exhaust Fan | 1080 M3/HEfficiently distribute warmth from a single heated space into four separate rooms with the Fantech 4 Room Standard Heat Transfer Kit. Ideal for use with fireplaces, split systems, or gas heaters, this system captures rising warm air and moves it throughout your home to improve comfort and reduce heating costs. At the core of the system is the Fantech Jetline 200MM mixed flow in line fan, which delivers a powerful 1080 m3 h airflow with energy