Chimneys & Fireplaces Question

My chimney stack is on the outside, can i create a chimney breast and alcoves on the inside?

Moving into a new house which has the chimney stack on the outside of the house. This means the wall in the living room is flat, and this has a gas fireplace fitted onto the middle of it - so, NO ALCOVES!
I would like to create alcoves in the room by building an internal 'chimney breast' somehow, and would like to fit a polished cast iron combination fireplace, (gas), which I understand does not generate the same amount of heat in the flue as a real fireplace.
Is this possible?
Can I have a 'false' chimney breast in this room, with lovely alcoves?
Thank you.

2 Answers

A lot depends on the width of your chimney breast on the outside,to create an alcove you would need a lot of width on the outside,and going by the average house they usually are a standard size in my opinion would not be possible.In saying that you can achieve most things with a lot of hard work by adding on to the breast on the outside to create the alcove on the inside.Thow this would be fairly expensive a need a engineer to do a written report on it.If you had a good size room,you could create that from the inside.

Answered 5th Jan 2012

Malachy Conlon

Member since 13 Sep 2011

Not entirely sure here but i think Malachy is referring to the alcove as the builders opening (the brick recess behind the current fireplace) - which would usually be between 24-36" wide, and if that is what devonshire way is talking about then he is 100% right, and it would be a fair amount of work. I apologise if i am incorrect here but i think the alcoves that devonshire way is referring to are the alcoves that are created either side of the chimney breast?

If that is the case then it is perfectly possible to achieve what you are wanting to achieve. The bottom section of the breast would have to be constructed in brick or block, and the flue either corbelled in to the existing external flue, a twin wall insulated system could be used to connect into the existing flue or a better solution would be to corbel in and drop a 7" gas liner all the way down which could gather directly above the gas appliance and give you the peace of mind that the fumes can only exit at the top of the old chimney stack. This would also be the best solution going forward in terms of regular maintenance (sweeping).

The top section of the breast can either be continued up to ceiling height brick or block, or could even be built in stud work. The construction of this "fake" chimney breast in the room would then create alcoves either side for storage etc.

Answered 24th Jan 2012

Chimney Care & repair Ltd

Member since 4 Jul 2011

Need help with your project?

We have tradesmen ready to help you. Post a job, read reviews and hire today.

Post a job

Need some help?

Post a job on MyBuilder to find quality, local Chimney & Fireplace Specialists who can help you with your project.

Search all questions