Mini Eurocowl If you use your chimney and have a chimney pot then consider the Mini Eurocowl. It provides an even airflow over the top of the chimney and is our best cowl to reduce wind noise. It is important to note that there isn't a cowl designed to eliminate wind noise - but it can help reduce it. It is a case of trial and error which can be expensive. However we have had positive feedback from our customers that there has been success in reducing the wind noise (sounds like blowing over the top of a bottle) with the Mini Eurocowl and we think it is worth considering. it comes in both a red and a buff colour to match your chimney pot and also in stainless steel.
What would we suggest if you don't use your chimney?
If the chimney is not in use, we would suggest you try a chimney balloon and you buy, from your local builders merchant, a clay cowl called a flue vent as this will definitely help your noise problem from the chimney.