ᐅ Place the fresh air supply of a mechanical ventilation system in the bedroom wall

Created on: 19 Apr 2017 15:48
K
Kaspatoo
Hello,

I have now received the first draft of the ventilation layout plan from the professional. He designed on-floor flat ducts (so far, I haven’t found any solid disadvantages compared to in-floor round ducts).

In the basement and ground floor, air supply and exhaust outlets are planned in the ceiling, which is not a problem.

In the attic, however, he does not want to do this because the ducts would have to run through the uninsulated/ unheated attic, which could cause condensation inside the duct system—this would not be good.

Therefore, the supply and exhaust outlets will be installed in the walls. Exhaust air at 2.20 m (7 ft 3 in) height, supply air at 0.5 m (1 ft 8 in) height.

These are planned, as shown in the attachment, nicely positioned in the corner, which I think would create an optimal airflow path.

However, beds are often placed in corners. Having a bed in front of the supply air outlet sounds rather impractical. Firstly, because the opening would be blocked by the bed, and secondly, because it would cause a draft while lying in bed.

Wardrobes will go along the long free walls. The two windows in the cross gable are floor-to-ceiling, the others are half-height windows. I understand that under the half-height windows a desk is often placed, allowing a good view outside. The latter is definitely a debatable point, but I don’t want to discuss it at length.

In my opinion, the exhaust air outlet at 2.20 m (7 ft 3 in) height can stay in the bed corner since I sleep low and wouldn’t notice it.

The issue mainly concerns the two children’s rooms. Here I was thinking that the supply air outlets could either be placed right next to each of the floor-to-ceiling windows or in the wall between the two children’s rooms.

What are your ideas and concerns about this?
Do you see the condensation (dew point) issue differently? I still believe that having supply and exhaust outlets in the ceiling would be the nicest solution.

Thank you very much.
Kaspatoo19 Apr 2017 20:17
Yes, understood, but inevitably all the dirt, dust, crumbs, and other debris will end up there. It therefore requires regular cleaning. That’s the downside, but still a good idea.
Mycraft19 Apr 2017 21:42
I cannot confirm that... in fact, the opposite is more likely...
Kaspatoo19 Apr 2017 21:49
Could you explain that in more detail? Gravity teaches me otherwise.
Mycraft19 Apr 2017 22:05
[MEDIA=YouTube]XqrDObuXQgI[/MEDIA]
Kaspatoo19 Apr 2017 22:14
So, a dryer is definitely not installed in the floor.
And the weak airflow might be enough to deal with dust, but not with crumbs and dirt.
I'm not convinced.
K
Knallkörper
20 Apr 2017 00:26
Mycraft schrieb:
I cannot confirm that... the opposite is more likely the case...

These engineers nowadays