ᐅ Tips and Tricks for Controlled Residential Ventilation Systems

Created on: 27 Dec 2018 16:16

Hello everyone,

Some of you may have already read my other thread about our building project.
https://www.hausbau-forum.de/threads/Projekt-Eigenheim-viele-fragen-wenig-Erfahrung.27222/page-6

Now, I would like to gather tips and knowledge from you all.
We plan to install a mechanical ventilation system with heat recovery.
According to the Helios mechanical ventilation easyPlan tool, we are recommended either a
mechanical ventilation EC 500W ET or
mechanical ventilation EC 370W ET unit.

Exhaust air volume is 236 m³/h (139 cfm) and
supply air volume is 234 m³/h (138 cfm).

Air exchange rate is 0.28.
Nominal ventilation is 235.
Intensive ventilation is 306.

We have an area of 280 m² (with basement and utility spaces) and
a volume of 849.95 m³ (30,000 ft³).

Which suitable devices can you recommend and why?
Is the duct length really 15 m (50 ft)? That could be problematic with my current planning.
We plan to use 75 mm (3 inch) round ducts.

Do you have any questions?

Thanks in advance for your insights and expertise.

andimann28 Dec 2018 10:25

#13

Hello,

red-ed schrieb:
OK, now that you mention it... why did you do that? To avoid supply and exhaust air ducts? Or is there a deeper reason?

It eliminates the need for transfer grilles or air gaps in the doors. The air has to be able to flow between rooms somehow; otherwise, you would need supply and exhaust ducts in every room. The air has to go somewhere, or it won’t work.

You can’t see this, only if you look down at the top of the door frame. And I rarely do that...

Regards,

Andreas

Mycraft28 Dec 2018 10:48

#14

By the way, valves do not need to be planned in the hallway, as this area usually serves as an overflow or bypass zone.

Schlenk-Bär28 Dec 2018 10:51

#15

Mycraft schrieb:
By the way, you don’t need to plan for valves in the hallway; it is usually an overflow area.

I am very interested in this topic. Do you have any tips on how or where I can best learn more about it?

Thanks and best regards

Mycraft28 Dec 2018 11:03

#16

Bosy actually has a lot of information on his pages.

Just search for "Bosy ventilation"

By the way: please make sure to complete your profile correctly.

red-ed28 Dec 2018 23:54

#17

andimann schrieb:
Hello,

It eliminates the need for overpressure vents or grilles in the doors or large gaps beneath the doors. Air has to be able to flow between rooms somehow; otherwise, you would have to install supply and exhaust vents in every room. The air has to go somewhere, or it won’t work.

You can’t see it, unless you look from above at the door frame. And I rarely do that...

Regards,

Andreas

Could you perhaps take a picture of that for me? And how did you implement this in the building phase?

Schlenk-Bär29 Dec 2018 08:48

#18

Sorry for the off-topic...

Mycraft schrieb:
BTW: please fill out your profile correctly.

What is wrong with it?

ᐅ Tips and Tricks for Controlled Residential Ventilation Systems

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