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The Excelarotor Cowl is a wind driven freely spinning terminal designed to provide an uplifting draught on difficult chimneys, it silently creates a positive up draught when rotated by the wind. They can be used on any buildings as a wind driven ventilation aid. It is manufactured from corrosion resistant aluminium and stainless steel. It is designed to fit most standard chimney pots and comes with a fully adjustable internal & external clamping system.




  • Creates Positive Up Draughts
  • Wind Driven
  • Corrosion Resistant
  • Stainless Steel Construction
  • Fits Standard Chimney Pots
  • Adjustable Brackets
  • Internal & External Clamping System.

Technical Data:


Cowl Material: 0.55mm 304 Stainless Steel
Rotating Frame: Aluminium
Size: 8 Inch
Adjustable Brackets: 100mm – 250mm
Surface Finish: Bright Annealed Stainless Steel Finish
Maximum Temperature:  200°C
Coefficient of resistance: 0.932
Conforms to: E.N. 1856-1-2009