SCATTER series helical destratifiers, are suitable for distributing, in the winter season, air volumes in medium and large rooms, such as sheds, warehouses and roofed structures. The main functions of this economizer are to achieve, at low speeds, fuel energy savings of more than 20% in relation to the type of roof insulation. Moreover, in order to achieve this advantage, a minimum power is used for the operation of the aforementioned. In the summer season, on the other hand, by applying a variable speed drive to the electric motor, and it is possible to use it as a simple fan to cool the ‘environment.