Hello. We removed our boiler from under a chimney breast and are now going to remove the whole of the chimney breast as well and fit an extractor hood. I'd like to use the existing flue that was being used by the boiler to connect an extractor fan (so that cooking smells go up the same route). Does anyone know if this is possible? Will it need to be lined to stop the cooking smells making their way up the upper rooms (where the chimney breasts will still be?) and will the fact that any odours will have to go up 2 storeys affect the efficiency of the extractor? Be grateful for any views. Thanks.
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