@ Exhaust air
When air has been heated, it is well known that it tends to rise rather than fall. Letting it out at the bottom does not fail thanks to crossflows, but it first requires suction or goes correspondingly slower than if you let it out at the top. So it could have been done more cleverly, but it’s not a big deal.
@ Triggering criticism
There are basically two "types" of forum users: invisible (aka silent lurkers) and visible (questioners, answerers/commenters). Compared to the silent lurkers, the questioner naturally has the disadvantage of being "visible" / "concrete" / "graspable" and "exposed" – but he also has an advantage over the silent lurker: namely, being able to steer answers with his concrete question, while the silent lurker has to live off the crumbs that also fit parts of his problem from these questions. So there is an advantage for the disadvantage, which one should not be ungrateful for, i.e., one should not overestimate the "ha, you did that wrong" criticism and not let the joy of the "here we can still tell you in time which detail you should better reorder" criticism be spoiled.
sorry, but this reminds me of another user who always wrote in such a way that you thought he must surely have a nice house because he was constantly criticizing other designs but didn’t give any counterexamples on how to do it differently.
When asked, he then stated: "I live in a rented apartment"
That’s absolutely not a problem, but whoever talks like that, you think differently.
This user is so present here that it seems rather odd if you leave out the name.
And, if you look closely: I always criticize the builders on a factual level. I hit hard against architects or specialist planners who, to put it kindly, deliver a work quality far below their fee level; and against software that fools the layman into thinking it can replace the architect but at best is a draftsman.
I am of the opinion that the "consumer" builder has a legitimate claim that the architect is not just one in name only but significantly superior to his client in construction planning skills. Drawing stairs without seeing the head heights in front of your mind’s eye may happen to a layman – but not to a professional who, after all, does not only take symbolic coins for it. If professionals copy layman mistakes without comment, in my opinion, that should not be commented on with kid gloves. And cases where "architects" ruin dream houses by draping blackwater downpipes in first-class cubist drywall sculptures between dining table and sofa unfortunately are not rare here.
I definitely do not give no counterexamples here, but only very few in pictures. The reason is quite simple: 1. I can write much better than I can draw; 2. I lack pictures for which I hold rights; 3. I lack the sense of wrongdoing to use foreign images without license.
And by the way, I have always stood by my conviction that renting, despite all owner pride, is a not to be underestimated more flexible form of housing finance (and I even like to emphasize that the half kilometer between the front door and garage gate is not my property). So if anyone should think after my posts that I’m already outshining Neuschwanstein’s pool house: that’s not my fault, that film must surely have been played in their own mental cinema.