I live in a small house built in 1928 and through the house’s two floors runs a relatively wide chimney. What I would like to do is make a large opening straight through the chimney and create a fireplace "inside" the chimney so it can be seen from the rooms on either side of the chimney. Is it possible? The second option is to install a stove, but that takes up floor space and the rooms are so small that I want to avoid that.

I don't have a stove, fireplace, tiled stove, etc., so the chimney is not used except for the kitchen fan (which doesn’t work and should probably be replaced by an electric fan). I have disconnected the old oil and electric boiler, so I no longer need to use any flue in the chimney for that.

I asked a mason if it was possible to make a hole straight through the chimney to create a fireplace inside, but he didn't know.

Hoping that someone on Byggahus.se can answer my question!
Susanne
 
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Your chimney stack probably consists of 6 channels or something similar. It might be a shame to remove all of these by placing an open fireplace "inside" the chimney stack. Partly as you said, the exhaust duct surely uses it, and maybe some ventilation in the basement?

Anyway, making a hole is not difficult. But the hard part is making the whole thing bearing from the heavy load. I would never dare to take on this project, not to say it's impossible :)
 
Does the fireplace have to be located in the middle of the chimney stack? One alternative is to build a penetrating fireplace in the wall next to the chimney stack and connect to a flue in the chimney from that side?

/The Engineer
 
You can also install a braskassett directly into the chimney, that's what we plan to do.
 
Thanks for the answers. I can install a stove next to the chimney, but it doesn't seem like there's a good spot for the stove and it takes up floor space.

Thomas, how are you going to proceed when you insert the insert into the chimney? How much needs to be left on the sides as "supporting"? My chimney is 105 cm wide, haven't measured how deep but maybe 50 cm. Do you need to custom order an insert?

Where can you turn for help with something like this, can you consult a structural engineer or architect or...?
 
We will probably go with a regular standalone stove in front, as it provides more heat than a built-in cassette. Had a bricklayer over here to check and discuss a bit, so we are abandoning the idea of a built-in cassette in the chimney breast.

In the latest Gör Det Själv, they show how to install a cassette in an open fireplace and there is also information on how to install a cassette directly into the chimney breast.
 
Thank you for the answers. I am very interested in drilling a hole straight through the chimney, but I'll see...
 
Does this work?
I mean mounting a cassette or something similar inside the chimney?
Anyone have more info?
 
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Thank you for that, I didn't find the article myself! Yes, on page 27 it says that you can mount it directly in the chimney stack and that you should have an extra reinforced cassette that is mounted in some kind of double steel hood.
 
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