Please note this fan has a current lead time of 4 - 5 weeksSave on heating costs, while increasing comfort: with the help of Multifan ceiling fans it’s possible. Because these fans mix the warm air from the ridge of the building with the colder lower air during wintertime, significant savings can be made on heating.In other words: these fans pay for themselves. During summer, the ceiling fan provide a cooling breeze. Perfect for large industrial halls, warehouses, and barns. In addition, the continuous air movement reduces humidity and condensation problems. Vertical airflow High level of air movement: up to 21,250m³/h at 0 Pa Electronic and transformer controllableExtreme efficiency: up to 4.2 Watt/1000m³/h Low noise IP55 motor (water and dust resistant) Minimal 2.7m installation height (in accordance with CE) Preassembled, except the blades Range +/- 220m²