win Wall H Cowl has been designed to be universal fitting and will suit most twin wall flues on the market. It is available in Stainless Steel and Black Finish as illustrated.

These cowls are designed to be secured by simply inserting the barbed section into the twin wall flue and pushing firmly down until the existing flue hits the domed storm collar.


  •  Promotes positive updraught;
  •  Fits most twin wall flues on the market;
  •  Made from Corrosion proof Stainless Steel;
  •  Use on chimneys in downdraught situations;
  •  Durable Construction;
  •  Quick and simple to install;
  •  Prevents rain ingress.

H Cowl for Twin Wall Chimney System


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