Hello,
we are just about to submit our building permit / planning permission application. I still have some concerns about the ventilation system.
My architect says that the exhaust air can be installed low and the supply air above it, with a 2m (6.5 ft) distance between them.
My worry is that the stale air, which is known to rise, might be drawn back in.
Are my concerns justified, or is this not an issue?
Alternatively, the exhaust air could run along the ceiling to the far end of the room. However, that would probably take up shelf space and is less compact.
Routing around the corner is not possible since the room is centrally located.
Thanks in advance for your opinions.
Best regards,
Christopher
we are just about to submit our building permit / planning permission application. I still have some concerns about the ventilation system.
My architect says that the exhaust air can be installed low and the supply air above it, with a 2m (6.5 ft) distance between them.
My worry is that the stale air, which is known to rise, might be drawn back in.
Are my concerns justified, or is this not an issue?
Alternatively, the exhaust air could run along the ceiling to the far end of the room. However, that would probably take up shelf space and is less compact.
Routing around the corner is not possible since the room is centrally located.
Thanks in advance for your opinions.
Best regards,
Christopher
Chriscross8 Sep 2016 07:52We don’t have any "towers" in the garden, but the KBE system is installed in the utility room. According to the architect, the supply air would enter above the unit, and the exhaust air would exit through the wall below the unit.
Having them side by side is also possible, with the exhaust air vent on one side of the room and the supply air vent on the same wall but on the opposite side. However, that takes up space in the room. Therefore, the question is whether it’s possible to have them positioned vertically, one above the other, or if there is a risk that the stale air coming out from the lower vent would be drawn back in through the upper vent.
Having them side by side is also possible, with the exhaust air vent on one side of the room and the supply air vent on the same wall but on the opposite side. However, that takes up space in the room. Therefore, the question is whether it’s possible to have them positioned vertically, one above the other, or if there is a risk that the stale air coming out from the lower vent would be drawn back in through the upper vent.
Chriscross schrieb:
That’s why I’m asking, is it possible to have them above each other, or is there a risk that the bad air coming out below gets drawn back in at the top? The supply and exhaust air vents should be at least 2m (6.5 feet) apart, and the supply air openings should also be about 2m (6.5 feet) above the ground (due to radon). Additionally, the main wind direction should be taken into account to avoid short-circuiting the airflow in light wind conditions.
Chriscross schrieb:
We don’t have any "towers" in the garden, but the KBE system is installed in the utility room. What is a "KBE" system? Does the fresh air then come through a long duct system, arriving centrally in your utility room at the ventilation unit?
Usually, the exhaust air is warmer than the supply air, meaning the warm air rises. It could be that you’re drawing the exhaust air into the supply air again if you have them arranged one above the other…
B
Bieber08158 Sep 2016 10:45WildThing schrieb:
What is a "KBE" system? I wonder about that too...
@Chriscross: In general, I would advise against the planned "stacked" arrangement. To better understand this, a floor plan might help. I still don’t see why what works easily in thousands(?) of other single-family homes wouldn’t work for you.
Chriscross8 Sep 2016 11:24WildThing schrieb:
What is a "KBE" system? Does the supply air then come through a long duct system centrally into your utility room at the ventilation unit?KBE is noted on the floor plan for the system. It is a standard ventilation unit mounted on the wall in the utility room that exchanges the air in the rooms.
WildThing schrieb:
Usually, the exhaust air is warmer than the supply air, meaning the warm air rises…I know that, and I also mentioned it in my first post. That’s why I have concerns.
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