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Which Chimney Pot?

Choosing the Right Chimney Pot

Choosing the right chimney pot is essential, whether you’re replacing an old one or installing a new fire system. Either way, a chimney pot should be chosen for functionality and suitability for the service, ease of fitting, and aesthetic appearance.

Some Solid Fuel pots, such as the Altham, Knight, Champion, Edwardian, and Ryburn, offer a striking visual effect, complemented by the traditional Bishop and Windguard pots. For a more minimalist look, Roll Top pots remain a popular choice.

Over time, specific designs and styles have become associated with different regions and have adopted the name of the area as part of the description of the pot. Examples include the Halifax Windguard, Leeds Bishop, Southport, Kendal, and Carlisle Blowdown pots.

Clay Chimney Pots: A Traditional Choice for Heritage and Performance

Heritage organisations, such as the National Trust, English Heritage, and World Heritage, frequently specify clay chimney pots to blend in with historic structures. In one notable case, W T Knowles was engaged to produce special Square Panelled Pots for the Salt’s Mill World Heritage Site in Saltaire near Bradford, West Yorkshire.

For like-for-like replacements, the decision is more straightforward, although there may be an opportunity to improve the performance of a fire by selecting an alternative pot. The style of the base, round or square, may be an influencing factor. Most chimney pots from W T Knowles are available in plain terracotta, salt-glazed finish or in an attractive buff shade. Traditional salt-glazed chimney pots are only available from W T Knowles.

W T Knowles offers an extensive range of over 180 terracotta chimney pots, terminals, and accessories designed for solid fuels, gas, and multi-fuel systems. Even when a flue or chimney system is no longer in use, W T Knowles has a wide selection of flue vents and blanking accessories necessary to preserve the status of the redundant flue. The accessories provide protection for the chimney system from the ingress of rain and nesting birds, and when flue vents are fitted, allow air to circulate to prevent stagnant and damp conditions.

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Terracotta Chimney Pots & Terminals

Our Terracotta Gas Flue Terminals are independently tested and certified by BSI to BS EN 13502 type 2 and are available in a selection of styles to suit the existing chimney installation. The most common types are inserts, though Bishop Gas Terminals and Combi Gas Terminals can sometimes replace an existing terracotta chimney pot.

For solid fuel installations, H-Pots are particularly useful in preventing the prevailing winds affecting the chimney performance. The Popular Pot and Anti-Aircraft Pot provide similar wind resistance while also making a bold visual statement on the roof top.

Many chimney pots feature multiple vents – which are openings passed round the wall of the chimney pot, promote the ‘draw’ of the pot allowing flue gases and smoke to escape more efficiently. This improved airflow can improve the operation of the fire. Sankey Pots and Vortex Pots are particularly installed for this purpose but the design of Bishop, Windguard and 3-bowl pots for example also gives an extra ‘draw’ capability for fire efficiency.

Chimney Hoods and Tops

A wide selection of hoods and tops are available as inserts or push-on accessories to fit existing terracotta chimney pots. These hoods generally feature large apertures for the efficient exhaust of flue gases and have contoured tops, some mushroom-shaped and others with a simple convex design. This shape helps reduce the impact of rain and deters nesting birds. The Hoods and Tops also assist in increasing the ‘draw’ and reducing downdraughts.

All clay chimney pots from W T Knowles comply with the Construction Products Regulations. The Declarations of Performance are downloadable from this website.

Find Out More:

Knowles Chimney Pot Types Technical Information