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The Anti Downdraught Chimney Liner Cowl is designed to fit a flexible flue liner to our most popular Anti Downdraught Cowl (All Purpose Multi Fuel Anti Downdraught Chimney Cowl

In Stock


From £84.99

Clear selection


Our Anti Downdraught Chimney Liner Cowl is designed to fit a flexible flue liner to our most popular Anti Downdraught Cowl (All Purpose Multi Fuel Anti Downdraught Chimney Cowl which comes with the Chimney Liner Fitting). This aerodynamic shape allows it to combat downdraught, while fitted to a liner application.

Our fixing techniques allows installation to a liner, eliminating the need for the pot to be removed.

Cowl Benefits

  • Painted terracotta or buff
  • Includes 2 x stainless.steel hose clips
  • Supplied fully assembled
  • Stainless steel birdguard
  • Made from stainless steel, with an aluminium lid
  • Backed up by our money back guarantee
  • Removable lid
  • Eliminates need to remove chimney pot
  • Available for 5, 6 and 7 inch chimney liners


  • Coal
  • Wood
  • Gas
  • Oil
  • Smokeless Fuels

This Chimney Cowl is complete with a Strap Fixing Kit.


MAD Cowls

Weight 2 kg

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We have been working closely with our manufacturing team and our courier services and as ever thankful for their continued hard work.

Chimney Cowl Products is a family run business passionate about what we do. We have been selling our amazing range of Chimney Cowl Products for over 15+ years and we are very much looking forward to the next 15+ years.

The whole family is involved. My daughter at the age of 6 helping mum wrap and stick labels onto orders and my son helps dispatch orders at the local post office (I do my bit too, promise).

Our Delivery Service

We reap the rewards of the very best postal prices form our courier and always amazed how they can deliver over 95% of our orders from our doorstep to your doorstep in just 24 hours and in most cases for less than £10.

We are with you at every step and if you would like to take advantage of our great range of products, ordering online could not be easier. Please simply select your desired product, add it to your basket and follow our secure checkout procedure. Upon receipt of your order we will process with an immediate effect.

Best wishes

Chimney Cowl Products

COVID-19 Delivery Options

Hello, just an update in regards to our delivery services – we are dispatching our range of Chimney Cowls and Disused Chimney Caps from our warehouses to our customers throughout the UK and following all recommended safe working Government practices.

Our orders are dispatched safely and securely via our courier services and they have been providing an amazing service for not just ourselves but many thousands of business throughout the UK and we offer our sincere appreciation.

We have a a great delivery rate from our courier and it always amazes me how cost effective their professional service is from collection to door to door delivery.

If you wish to have your delivery put into a safe place or have any special delivery instructions we can happily accommodate this and please leave a message within the delivery section of the checkout process. We can then ensure that there is no personal interaction at any time with yourselves and our courier service.

Please take care and we look forward to dispatching your order.

Choosing the Correct Size

Its sometimes difficult to choose the correct size of Chimney Cowl. We have the perfect solution and can be done from ground level as well.

If you can accurately guess the size or width of the chimney pot from the floor you can order the right Cap or Cowl from Chimney Cowl Products. The good news is this is relatively easy once you know the rough size of a house brick and the thickness of the walls of a chimney pot.

Using either the naked eye or a set of binoculars get a ‘side on’ view of the chimney pot you wish to cap or fit a chimney cowl, then find a full sized brick nearest to the chosen pot as a reference, normally directly underneath.

Now imagine that the brick is placed on top of the chimney pot itself and make a mental note whether it would fit inside, hang over, or sit flush. It may sound silly but once you know that the width of an average UK house brick is 225mm ( 9″ ) for imperial or 215 ( 8 and half ” ) on a modern property, it provides a very accurate impromptu tape measure.

The other factor you may need is internal pot size, this can also be guessed quite accurately if you know the average thickness of a chimney pot is about 25mm ( 1″ ) , simply factor this in and you can work out most chimney pot width’s quite accurately.

If you have large decorative rolls on top of the pot, make an allowance for this by guessing, using a brick as your guide.
Chimney Cowl Products - Your family run business proudly capping the UK for over 15 years...
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