Hi. Recently purchased my bisf house (£76100) in November 2015!
The next couple of weeks in renovation time. Can anyone advise on the best way to remove the cimney all the way through the property (steel tube from living room to roof). And does this offer any structural element to the building. I will also be having a lot ch installed for the eventual removal of the wall between the living room and hall way. Any advice would be gr aptly received.
Many thanks.

  • Ed (Senior Member)

    Hi and welcome! There is a whole member post about this with a lot of photos here: http://bisfhouse.com/removal-of-bisf-house-cast-iron-flue-tube-by-doug

    There is a steel frame around the flue tube itself, but this only supports the timber and plasterboard boxing in.

    This is going to be my next big project, but I haven’t yet decided how to deal with covering the hole it will leave and central heating pipes it contains in the living room. Maybe some sort of feature wall?

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I agree with Codge
We removed the chimney stack and metalwork associated with the surrounding frame three weeks ago. The fireplace and lower portion had alsready been removed when the property was purchased, with the upper stack in the upstairs room and through the roof still in place….

I used a chain hoist and tether, tethering the lower piece of cast iron flue to the chain hoist (hung from the main roof ‘I’ beam) and then used an angle grinder to lop off the lower portion of the stack. The collar for the lower was then cut, to free the piece. This could then be lowered to the ground floor and removed – it took two of us to carry it outside! The upper stack in the loft is more awkward, as there is no really high strong point to hang the hoist on so we used the upper collar mounting ring, then did the same as for the lower stack. The major issue with this is the chimney capping is attached to the top of the stack and needed to be cut free as well, and we had to cur this through a very small gap in the stack. The roof also neds the stack hole then covered/reroofed as you’ll have a hole running from the roof through the house. This didn’t matter to us as the roof is being replaced in toto anyway, as it is still the original asbestos sheet.
The angle iron frame can then be unbolted and removed bit by bit. Note that the floor will have to be built up on the second storey as there will be a hole where the chimney frame ran through the building, and of course the downstairs cieling and upstairs ceilings need to be patched.

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I removed my Ship funnel a while back now. It was pretty straight forward all be it time consuming.

The Chimney/ flue if you like ( as a lot of properties had various fuel systems at one point or another) is made up of three sections, with anchor straps at different levels.

With my experience I would suggest hiring a pipe breaker which id like a chain ratchet which would crack the steel pipe and then remove in manageable pieces.

Points of warning; The flue sections are extremely heavy, even once each section was out it was an extreme effort for two very strong men to lift, BE CAREFUL.

Make sure that there is no old asbestos lagging around the top of the flue, if so this will need removing according to the current regulations.

The remaining frame is then pretty straight forward to remove along with the fire place.

You will need to reposition a number of central heating pipes, or maybe just isolate if you having a new system fitted. The hearth will also need infilling.

Just take your time.

Hope this helps a little

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