The MAD spinner cowl is the best quality revolving chimney cowl on the market.  Designed to eradicate downdraught, whilst the rotating action assists ventilation, this cowl is the go to product to increase upward draw within the chimney. It is also commonly used for ventilation purposes on extraction flues at land fill sites.

Tested and Complies with BSEN 16475-7:2016
Time served in the metal engineering sector has provided JD Burford with the knowledge and understanding of how to manufacture technical products such as this. We know how many stresses are placed on a spinning cowl especially when wind speeds are at increased levels.   Therefore we like to ensure that customers are aware that M.A.D spinner cowl is made from thick aluminium cast base with a stainless steel fin set and shaft assembly.  Using light weight materials is not an option when producing a cowl that will be placed under such stress when in use.