Soot & Grease Removal Options for Glazed Surfaces, Joints, Emulsion Painted Walls - Manual Cleaning

Hello
What preparations are available on the market for removing soot and grease from glaze surfaces, joints and walls covered with emulsion paint.
It is about manual cleaning.

Hello.
Do you have a regular CO stove or a fine coal stove and a chimney without an insert?
My aunt was also struggling with these stains. She installed the insert and applied a new plaster after removing the old one where there were stains and the problem disappeared.

I do not have a coal fired CO furnace.
Soot on the walls in all rooms is the result of a fire in one of them.
I want to remove excess dirt initially.

I don't know anything about chemistry. Maybe sanding the walls?

I found Karcher funds on the internet
-RM 750
-RM 69 ASF
has anyone used them? what is their effectiveness

The soot is rather hard to remove from the joints
But for starters, try some expensive and good washing-up liquid (Luwik, Ajax, etc.) with a surfactant content of more than 30% on washable surfaces, and soapy-detergent health and safety paste or Komfort washing paste works well. Except that you put it on by hand with a little water and wash it off with water. Proven when cleaning small washable surfaces from soot.
If you want a pressure foam sprayer, look for something to clean the cooking chambers, but these agents are very aggressive (pH around 12-14) based on soda lye and must be thoroughly washed off the surface. There is a risk that they can damage paneling or other surfaces.
Good luck because you have a lot of work

I can also suggest the HG Hagesan Clean Bathroom product - foam, spray bottle, I had smoke in the newly renovated bathroom myself, unfortunately porous materials can not be restored to a perfect clean state, my joints are darker. But it was fairly good at cleaning the soot from slightly porous tiles.
Greetings

Thanks to everyone for the answers.

I will do this:
Initially, I will remove the excess soot mechanically with a dense brush, then I will use some cleaning agent and I will try to clean the joints with a steam generator.
I will write what the effects of these actions will be.

As planned, I started to remove excess soot from the wall and ceiling with a dry brush. The original deep black turned to gray is a good sign, less smearing when washing.
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I have tried over a dozen preparations available in retail trade. On each of them, the manufacturer described its miraculous properties that grew along with the increase in the price of the product. It is a pity that the described miraculous action does not translate into a real fight against dirt.
No matter if the preparation costs a dozen or so zlotys or several dozen in my test, the effect was always the same dirt smeared and was not washed away, in a word, the cash was thrown away.
And now a hint of optimism.
I found a product that I am happy with, not in some big retail chain, but in a small paint and building materials store. It is "Emi7 concentrate" in a 1-liter package at a price of about PLN 14 and, surprisingly, it washes off the soot, I repeat it, but not smudging.
With the help of the Emi7, I washed the soot and other dirt from the surface of the glass panes and white plastic windows from the fire. I have cleaned the glaze without any problems, the joints are not completely white yet, but I will go to them again, this time with warm water. The tiles on the floor are washed clean joints. Varnished surfaces washed clean. The only drawback is too much foam, but that's a detail.
And this is what Emi7 looks like

https://obrazki.elektroda.pl/95_1235148759.jpg

In some cases, hypochlorite based bleaches can be used. You then have to ventilate thoroughly and be careful with some materials (metals, fabrics, dyes) so as not to destroy - but the effect is that it makes 'whiteness' which can play a major role in the advertising of washing powder.
Additionally, it disinfects and disinfects the surface.
Oh, I don't mean ACE, lenor, vanish, etc., but technical sodium hypochlorite - for dilution in water.

I checked the recommended EMI 7 liquid, concentrate when trying to clean soot from ceramic tiles. I scrubbed a heavily wet tile with a brush, unfortunately this preparation is a total linden and despite all efforts, there was no trace of EMI 7's effect on the roof. TENZI Gran smog preparation is used, however, when applying the preparation, one must take far-reaching precautions, during contact with the skin it feels like the preparation burns.
It is worth emphasizing that Tenzi is cheaper than the EMI 7.