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Aerodyne Chimney Cowl

Aerodyne Chimney Cowl
Aerodyne Chimney CowlAerodyne Chimney CowlAerodyne Chimney Cowl
€55.35 Inc. VAT :  €45.00


Time and again this cowl has proven its worth as one of the top antidowndraught cowls on the market. Its unique venturi shaped design causes a drop in air pressure which increases the amount of draw up the flue helping to exhaust smoke and fumes efficiently.

Fixing kit included.

What is it for?

If you have a problem with wind related downdraught caused by nearby tall buildings/trees or incorrect chimney height, this can manifest as both a lack of draw (updraught) and as a downdraught problem. As one of the original anti downdraught cowls and having been in constant production for over 50 years, the Aerodyne Cowl has certainly proven its worth when it comes to curing issues with wind related downdraught. When wind from any direction passes through the cowl, the unique venturi shaped surfaces cause a drop in air pressure which draws smoke and fumes up the chimney for a more efficient dispersal into the atmosphere. The Aerodyne Cowl is for use with solid fuel (wood and coal) systems only with the option of additional clip on birdguard sets to prevent the entry of birds, vermin, and leaves into your chimney.

What sizes & options are available?

An Aerodyne cowl can be fitted to a standard size round chimney pot with internal diameters between 150mm to 240mm (6” – 9.5”). The Aerodyne is made in aluminium and is available in natural unpainted, or powder coated terracotta or black

How do I fit one?

The Aerodyne Cowl can be fitted via its Strap – the most secure method of fixing the cowl to the pot achieved with the use of external legs that are bent around a stainless steel strap which encircles the pot.


Products ordered from our online store are delivered from Monday - Friday each week, except for Bank Holidays. We aim to have all orders that leave our store delivered to you within 2 working days. Please note that some products may have specific lead times, which may affect the time it takes to receive your order.

We offer nationwide delivery anywhere in Ireland.


Small shipments

Parcel (Max 20kg):


Delivery Weight Nationwide Rates
Up to 20kg €9.00


Large shipments (pallets):


  Pallet Weight Nationwide Rates
Quarter Pallet (Max 250kg) €40.00
Half Pallet (Max 500kg) €45.00
Full Pallet (Max 1000kg) €50.00
2 x Full Pallets (Max 2000kg) €96.00
3 x Full Pallets (Max 3000kg) €138.00
4x Full Pallets (Max 4000kg) €176.00



Roof N Stop Ltd.


    Order online or call our Sales Team:
01 621 5677