MAD Anti Downdraught Cowl

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MAD Cowl Strap Fix
Usually In Stock
  • MAD Anti Downdraught Chimney Cowl
  • Black Strap Fix
  • Aluminium Strap Fix
  • Buff Strap Fix
  • Stainless Strap Fix
£58.03 Inc. VAT
£48.36 Ex. VAT


The Anti Downdraught Cowl is the most popular compact anti downdraught cowl on the British market. The reasons for this are that its compact and aerodynamic shape allows it to combat downdraught. Alongside this, it features a drainage system designed to divert rainwater away from the pot when in use, whilst the internal stainless steel bird guard prevents birds leaves and vermin entering the chimney. As with all MAD cowls, the quality on offer surpasses that of equivalent inferior models being offered elsewhere.

The Anti Downdraught Cowl Benefits

  • No special tools required when fitting
  • Compact design which allows it to be fitted side by side where space between chimney pots is restricted
  • Made from 1.2mm aluminium and stainless steel
  • Backed up by the MAD cowl money back guarantee (explained under terms and conditions)
  • Sold complete with stainless steel strap fixing kit
  • Stainless steel bird guard (recommended removal for use with coal or wood)
  • Has a test certificate to BSEN 16475-7:2016
  • Height 140mm Width 310mm
  • Painted versions have a corrosive resistant powder coat finish, which makes it suitable for all fuels (see fuel chart)
  • Suitable for pot sizes up to 300mm
  • Highly effective in preventing downdraught
  • Withstands flue temperatures up to 200°C

The Anti Downdraught Cowl is not to be used with smokeless fuel. It is recommended using the MAD Junior Stainless Steel or MAD Senior Stainless Steel when in use with more corrosive fuels such as smokeless fuel

For flue sizes 125mm (5 Inches) to 175mm (7 Inches) an adapter plate will be required. Please contact us for advice.

Please see the fuel suitability chart below ( X = Suitable, Blank = Unsuitable)

Suitability Chart





Smokeless fuel

MAD cowl aluminium






MAD cowl painted






Painted = Terracotta, black & buff

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2 Reviews

  • 3


    Posted by Ralph on 3rd Mar 2022

    The product is sturdy and well made. It is easy to put together. The reason for the 3 stars is that the legs are too stiff tobend under the roll top of some pots to give extra security agains being blown off in a storm. The pot shown in the add is ideal for this cowl. Ones that expand as they get closer to the top of the stack not so ideal. I would also question why they are not made with 1" square mesh to allow the bird guard to remain fitted for solid fuel appliances.

  • 5

    Chimney top

    Posted by C.webster on 27th Oct 2020

    Quick and efficient reasonable price

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