Is a wood stove just a plaything with underfloor heating?

for controlled residential ventilation you need:

an independent room air stove (rlu) with certification according to ditb
a supply air for the stove (either in the floor or via a two-shell chimney)
a pressure monitor (cost us 2000€, but we got ripped off. it involves a lot of chiseling but can only be installed during the construction phase), which measures the difference between room air pressure and exhaust gas pressure, and shuts off the ventilation in case of differences. (All of this is decided by your district chimney sweep. No, you have no right to choose during the initial inspection. yes, the chimney sweep is like God to you, his word is law, yes it may be that it runs completely differently elsewhere, no, do not argue with your chimney sweep)

We have the justus reno R. the stove costs +/- 1000€, is RLU and weighs about 220kg, so it is much more of a storage stove than the other cheap stoves. of course, no comparison with something built from half a ton of stone. Additionally, you can unscrew the stone, then you can transport the stove yourself with a hand truck (then it only weighs 100kg). The connection is arranged for you by toom, or other hardware stores with craftsman service, it cost us 700€ (due to the calculations required by the chimney sweep, without them it would have been 200€)

Since we have photovoltaics, and can see quite precisely via the app when the heating turned on and off: yes, the stove makes the heating turn on less often. I once calculated it, from about -6 degrees the stove with wood briquettes at 199€ per ton is more economical than the air-water heat pump.
yes, the stove can burn continuously, if you run it all day, then the heating stays off completely.

but: in the room where it is installed it’s a relaxed 26-27 degrees, upstairs it’s usually 22 degrees. and the installation room has 75 m²…

All in all it cost about 12,000€. but it’s nice for the ambiance, and in a winter power outage: hey, I have 300kg of lignite in the basement… don’t care :P

Lignite.... EiEiEi. Don't let the green faction read that !

Basically, it fits, I do it almost identically with wood + water management. But: In the cost/benefit calculation, such a chimney is at the very bottom of the scale, as long as the standard building technology works. Anyone who does this for reasons of autarky also needs a lot of idealism, because as soon as you have a controlled residential ventilation system included, you need control technology for the stove. But that also only runs on electricity...

as soon as you have a controlled residential ventilation system included, you need control technology for the stove. But that only runs on electricity...

um, yes, but the controlled residential ventilation system too??? Power off - guardian off - controlled residential ventilation off - all good

Something has to switch the controlled residential ventilation off and on again. That also needs power. And the burn-off control in the stove does too.

Actually the stove in the hallway? Or only loading it from the hallway? Without a viewing window in the living area? Then arguments about the comfort of seeing the fire are probably out of the question and it's only about heat generation or am I seeing this wrong?

Something has to turn the controlled residential ventilation off and on again. That also requires power. And the combustion control in the stove as well.

My stove has a lever for that. I turn it to 9 o'clock, and then some bimetal thingy works with the air control.