Removing a wall - knock it down or cut it with a flex?

Hello I attached a plan (photo) so you can all get an idea We want to place a wood stove in front of the fireplace (red) in the living room. To save energy costs, we wanted to remove the wall between the living room and kitchen. There used to be a wall at the green (----) line, which was removed by the previous owner. At this point, a steel beam was installed at the top of the ceiling. The original wall (between living room and kitchen) was moved by the previous owner into the yellow-blue area. The yellow part in the picture consists of 8 cm gray concrete blocks, the blue area of 5 cm Üton stones, so the wall is 13 cm thick in total. Now we want to remove this (yellow-blue wall). My question: Is this possible or is there any danger? As said, the original wall (green) was removed and replaced by a steel beam at the ceiling. And what is the best way? To break it out or cut with a flex? Thank you very much

To be 100% sure, always ask someone who knows about statics again. Possibly an architect or similar in your circle of acquaintances? Are there still original plans of the house? You can already recognize quite a bit from them. Logic tells me that it cannot be a load-bearing wall, since a steel beam was installed in the original position - thus this was the load-bearing wall. It is also always helpful to look at the beams. If these are identical on the floor above, it indicates a load-bearing wall. If everything is clear, then order a trough, grind to prevent the sides from breaking out too much and to create a clean finish, and take the largest sledgehammer you can find. And don’t forget your mask! It gets dusty like crazy! Mrs. Unger

Thank you for the quick response
one more question, what do you mean exactly by the beams again?
Do you mean the beams in the living room (where we want to tear down the wall = 1st floor) and those of the floor above?
If yes, how can I even find that out?
Best regards

Yes, you can check if there is a wall in the same spot on the floor above. Also, if the wall you want to tear down is thicker than the others, that could be an indication that it is a load-bearing wall.

As I said, a professional can tell at a glance. I would guess it is a non-load-bearing wall - but no guarantee!!!
If necessary, there are always steel beams.

Good luck!