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

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.Painted versions have a corrosive resistant powder coat finish, which makes it suitable for all fuels (see fuel chart) The Anti Downdraught Cowlis 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. TheAnti Downdraught Cowl Benefits 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. For over 80 years Colt Cowls have been supplying the UK market with chimney cowls and can therefore boast the most experience in designing and producing chimney cowls. In fact, since 1931 over 4 million Colt Chimney Cowls have been successfully installed in the UK! 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 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. Colt Cowls are rightly proud of the quality of chimney cowls they produce, and are the ONLY chimney cowl brand with BSI Kitemarked chimney cowls, and or course where relevant all Colt Chimney Cowls are tested and certified under the new regulation BSEN 16475-7:2016 and BSEN-1856-1:2003. 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. 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 fuel

When used with seasoned wood, coal or oil your spinning/revolving chimney cowl will need to removed each year and cleaned. We feel that other brands that do not mention this are misleading customers into thinking that the model they offer will not need this maintenance. All spinning cowls unless used with gas will inevitably suffer debris build up, this debris will need to be removed to ensure the product keeps spinning. Below: Colt Cowls adverts from around the 1950's - over 4 million Colt Chimney Cowls have been sold in the UK Explained further– It is our opinion that no spinning/revolving chimney cowl is suitable for use with peat or smokeless fuel without increased levels of annual maintenance, that is why we do not offer a guarantee when these fuels are used. Mentioned within our product bulletin above gives customers an insight into the vast knowledge we possess in the field of metal engineering. Be assured we know the limits of the materials used within this product type; It is our expressed opinion that no spinning/rotating chimney cowl can cope with such acidity levels on a prolonged basis, without failing. If it is your desire to use the spinning cowl with smokeless fuel, all we ask is to be prepared to carry out maintenance at shorter intervals. That said, our spinning cowls are made to the highest standards, and should a customer want to use a MAD Spinner cowl outside our warranted recommendations, then we have spares on hand, to ensure that our spinning cowls can be serviced and/or repaired more frequently.