MAD Cowls Anti Downdraught Chimney Cowls - Various Styles Terracotta, Strap Fix

Product Information

iii) and lastly (which is common in the most popular of new smaller compact cowls that purport to achieve both of the latter), the senior does not restrict the flow of gases where smaller compact cowls often do. The nuisance caused by birds, small animals and leaves entering the chimney can be resolved by fitting this cowl. The Aderyn cowl is a directional cowl that provides complete dynamic protection to the chimney flue from wind-driven rain and downdraughts. The body of the Aderyn cowl provides a protective shroud rather like a large umbrella, and the pivot point is positioned behind the head which acts as a wind vane that ensures the cowl always faces away from the wind, fully protecting and shielding the chimney pot.

Wind-driven rain normally enters any standard cowl, and this can result in water being funnelled directly down into a stove in the case where a chimney liner is installed, causing rusting or damage to the stove lining. The Aderyn cowl prevents any wind-driven rain entering the chimney, whether in heavy vertical rain or the near horizontal gale-driven showers and squalls that are a common feature of our weather in the UK. The knowledge and technical support we offer our customers far surpasses that of our competitors, whilst our focus on solving chimney problems with modern designs and the most up to date of aerodynamically shaped products, cements our market dominance. Testament to our claims is that our range is available for all the largest builders’ merchants’ right across the UK along with all major chimney and flue distributors. The M.A.D cowl range is by far the best quality and most comprehensive range of chimney cowls to help solve every type of chimney-related problem. The aerodynamic design and quality of the twin sealed bearings ensures that the Aderyn cowl responds instantly to any breeze, protecting the chimney at all times. Made from stainless steel, providing a more durable and long lasting Birdguard when corrosive smokeless fuels are burnt. The nuisance caused by birds, small animals and leaves entering the chimney can be resolved by fitting this cowlThe wind blowing across the top of any chimney is rarely a smooth, steady, laminar flow. The proximity of another building, trees, adjacent roof pitches or other feature will cause turbulence which can frequently cause problems. Obstructions often produce ‘rotors’ that result in reverse flow in the chimney, or downdraught. Everyone has experienced reverse flow, which is commonly only temporary, but causes the fire or stove to puff clouds of smoke into the room. No cowl can be guaranteed to cure all types of downdraught as the causes are so varied, but tests and observations have shown that the Aderyn cowl is one of the best at doing exactly that because unfavourable downward air flows are split by the cowl and directed over each side of the pot, and the low pressure zone just above the pot is pre-served, maintaining chimney function. Painted versions have a corrosive resistant powder coat finish, which makes it suitable for all fuels (see fuel chart)

At J D Burford/Mad Cowls we regularly speak to customers who need us to specify the correct cowl for them, based on the specific set of facts they provide us with. When doing so, the most important question we ask is, what problem are they trying to solve when fitting the cowl? Often a customer will be under the misapprehension that there is a general purpose cowl for all applications. However, this is not always the case anymore, and although some manufactures still purport to be able to deliver such a cowl we believe that this is no longer the case, and such manufactures are out of touch with modern demands – using old out of date and redundant cowl designs. The Aderyn cowl provides exceptional dynamic rain protection by shielding the chimney from both vertical rain in still conditions and wind-driven rain glancing in at any angle right down to the near-horizontal experienced in the worst storm-force winds. The MAD 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 fuelMAD Cowls manufactures 3 different models of static anti-downdraught chimney cowls – the Senior, the Junior, and the MAD. All models have an aerodynamic shape that will divert directional wind across the top of the chimney to draw the smoke out and preventing downdraughts. Below: Colt Cowls adverts from around the 1950's - over 4 million Colt Chimney Cowls have been sold in the UK With the emergence of eastern countries as a source of cheap product within the chimney cowl sector, in 2005 it was time for the Burford family using the brand name M.A.D cowls to step from the shadows of other manufacturers, and to market our own range of chimney cowls. As they say the rest is history, since 2005 we have established ourselves as the main player within the field going from strength to strength in terms of our dominant market presence across the UK.

Fitted with a multifuel birdguard which allows the cowl to be used for gas and oil as well as seasoned wood The incorporation of swages and strengthening beads on the lid of the MK2, allow for increased structural integrity and durability for longer periods of service. The cast aluminium base is exceptionally free-flowing and offers very low impedance to flue gases. The open body of the cowl has a clearance area greater than the chimney pot cross-sectional area and likewise offers very low impedance to smoke and flue gases. An effect of standard Chinese-hat type cowls which is not often appreciated is the tendency for smoke to ‘bounce’ off the underside of the cap and travel downwards thereafter. To understand the effect, try holding a spoon the right way up under a running tap! In certain conditions, this is enough to send the smoke right down to the ground where it can become a nuisance. By contrast, the Aderyn Cowl simply deflects the smoke, which can continue to rise at all times. Colt Cowls supply the largest range of chimney cowls in the UK, and have a reputation for producing the highest quality chimney cowls and chimney birdguard cowls available on the market.The MAD 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, the M.A.D cowl features a drainage system designed to divert rainwater away from the pot when in use, whilst the internal stainless steel birdguard prevents birds leaves and vermin entering the chimney. As with all M.A.D cowls, the quality on offer surpasses that of equivalent inferior models being offered elsewhere.

TheAnti 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 The solid fuel chimney liner cowl is designed to fit flexible flue liner to a birdguard cowl application, without the need to remove the chimney pot. The superior quality of this product makes it in our opinion the best model on the market. Compact design which allows it to be fitted side by side where space between chimney pots is restricted IMPORTANT– Spinning cowls are not suitable for use with peat, smokeless fuel, or freshly cut unseasoned wood. Any guarantees are void in conjunction with these fuels. Regardless of which chimney problem you’re struggling with, MAD Cowls offers the most comprehensive range to help you solve it. Fully committed to solving all chimney related issues, MAD Cowls offers technical expertise and industry knowledge that is second to none. This has enabled MAD Cowls to design the most innovative solutions and offer the most aerodynamically shaped products to cement their market dominance.

The M.A.D cowl brand is a trade name of J D Burford Ltd, our family business is involved in a variety of sectors born from our main capabilities of metal spinning, metal forming and metal finishing. To see more details on J D Burford Ltd, please visit www.jdburford.co.uk. MAD Cowls – the provider of “problem solving chimney cowls”– was established in 2005. In the past 12 years, they have built a solid reputation as a trustworthy supplier and become one of the biggest brands in the field. Launched in 2005, the M.A.D (metal anti downdraught) brand of chimney cowls has become the most dominant brand in the UK.