ᐅ Exhaust air and supply air above each other?

Created on: 7 Sep 2016 17:07
C
Chriscross
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
Chriscross8 Sep 2016 11:29
Floor plan HAR/HWR: Room with supply and exhaust air ducts, ventilation components.
Jochen1048 Sep 2016 12:01
According to the plan, the supply and exhaust air are estimated to be about 3 meters (10 feet) apart, not directly above each other.

Am I misunderstanding something?
Chriscross8 Sep 2016 13:53
Musketier schrieb:
Controlled Ventilation and Extraction, perhaps?

Could be. Or maybe Continuous Ventilation Unit.

But either way, now you know what it’s about.
Y
ypg
8 Sep 2016 14:21
@Chriscross
It's good that you’ve now answered all the questions you initially asked us.
For me, the only remaining question is: why do you want to do it differently than planned? The mechanical ventilation system with heat recovery (in your case KBE) belongs in a small utility room, mounted on the ceiling or hanging on the wall. That way, the ducts don’t take up much floor space, except where the unit itself is installed.
Chriscross8 Sep 2016 14:29
The plan was for the ducts (supply/exhaust air) to run above and below the system. What is shown on the plan is what I have designed. Both options are possible.

I am now simply looking for the ideal solution, considering all eventualities.
B
Bieber0815
8 Sep 2016 15:09
Chriscross schrieb:
The plan was for the ducts (supply and exhaust air) to run above and below the unit. The way it is shown on the plan is how I designed it. Both options are possible.

I would do it as shown on the plan (with the ducts hanging from the ceiling in the utility room, so the outlets on the exterior are positioned high enough).