Replacing an open flue boiler.


22 Oct 2013
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United Kingdom
We have a Potterton Kingfisher (about 25 years old) sited in a cellar using an existing chimney (lined)as its flue. There is no suitable external wall to site a new flue and we are struggling to find a place in the kitchen to take a new boiler. (Also we live in a thatched, listed building!)

Can anyone suggest a way to install a modern gas boiler using the existing flue? This is a planning problem as the boiler is working well at the moment. (tempting fate!).

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Atag boilers do a flexible liner.

Plus they will let you keep the boiler open flued.

5 year warranty.

Not the cheapest solution normally. But in your case. ..
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Baxi also have introduced a coaxial flexible flue for their back boiler replacement unit. May fit other models too.

I am still not convinced there is no other arrangement that you could use.

You would be surprised Tony - some of the jobs I have running at the moment with listed buildings are a nightmare with the local heritage stazi.

My big oil project going in the CC needs one joining a listed building and two boilers in a cellar with no outward appearance change to the property.

Current pricing puts the flue as much if not more than the boilers. :eek:

Atag stuff is reasonably priced for the quality and pretty versatile. Doubt OP is too far from me if they can't find someone local and can wait a while ;).

Not heard a good thing about the Baxi back boilers - I think even Baxi wish they would go away.
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Thanks for your thoughts and suggestions.

We think we have found a suitable outside wall (not in the kitchen) so we can look at a more conventional installation.


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