• Wilkins Chimney Sweep

The importance of the RIGHT flue terminal




John Baldacchino in West Cheshire was recently called by a customer who had a nest in a gas flue – this is a really serious danger. If the customer had been using the gas fire there is nowhere for carbon monoxide to escape except to build up in the room – and this could have resulted in deadly carbon monoxide poisoning. This nest was pretty extensive – you can see how close it is to the top of the pot.


This situation was made worse because the customer believed she couldn’t have a nest in the flue as there was a ‘cage’ on the top. Here’s a picture of ‘the cage’. These are ‘affectionately’ known as bird boxes by our team as they offer no protection AGAINST birds but a lovely warm and rain free ‘home’ FOR birds! This terminal was clearly stamped with DO NOT USE ON A GAS FLUE. These terminals are more usually stamped NOT TO BE USED ON FLUES IN USE – and are simply unsuitable for use on anything but a disused chimney. If there is something stamped on a flue terminal there is usually a sound reason for it!


The Wilkins Chimney Sweep team all know what to fit for the appropriate flue. When there is a change of use it is absolutely critical to check that whatever is fitted is fit for purpose.



So please spread the word – don’t rely on someone who has no specialist knowledge of what to install (builders often don’t know the right type to fit – however good they are at building!) and if in doubt, please feel free to contact a Wilkins Chimney Sweep! Whatever you call it – cowl, cage, birdguard, terminal, clay pot thingy – we’ll work out what you need it for and then make the safe recommendation.

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Wilkins Chimney Sweep Limited

Trading Address: 13 Chaldicott Barns, Semley, Shaftesbury SP7 9AW

Registered Office: Swatton Barn, Badbury, Swindon, Wilts SN4 0EU