Darco system

(Ø400 – Ø500)

Chimney cowl dedicated for multiple ventilation ducts and industrial ventilation.

Rotary chimney cowl Turbowent Ø400-Ø500 is a device, which, in a dynamic way, uses force of the wind to increase chimney draught. The turbine always rotates in the same direction no matter of the wind strength or its direction. It is to be mounted on gravitation based ventilation chimney duct endings, esspecialy on special bases for multiple ventilation ducts on blockhouses or for industrial ventilation.


  • when there are wind fluctuations on the chimney duct ending, caused by its bad location
  • when there is an unfavorable terrain configuration, with strong and frequent winds
  • when there is a lack of chimney draught or it is too weak
  • in order to improve the natural (gravitation) ventilation


do not use on gas and oil boilers

do not use on wood stoves

do not use on coal stoves

do not use on coal based fuel

do not use on pellet stoves

Available inlet diameters: 400, 500 [mm]
Mounting versions: See catalogue card*
Material versions: See catalogue card*
Max. working temperature: 150 [ºC]
Bearing system: ball bearings sunk in grease

* Catalogue card is available in “Download” tab.

TURBOWENT rotary chimney cowls - effective improvement of chimney draught