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.

andimann27 Dec 2018 17:43

We simply routed out the top of the door frame slightly to create a channel about 10 mm (0.4 inches) high and approximately 500 mm (20 inches) wide. Of course, no foam was applied there when installing the door. This works perfectly for us.

andimann27 Dec 2018 17:46

red-ed schrieb:
I will look into "Schliebe" and "ventilation." Maybe this gentleman can help me as well. Where is he from?

He is located in Salzwedel, quite remote between Magdeburg and Hamburg. But don’t worry, he has a phone. We built near Nuremberg, and delivery was not an issue. It is shipped by freight anyway.

Best regards,

Andreas

red-ed27 Dec 2018 22:45

No, something like that is not planned at the moment. Each room will have either supply or exhaust air. Only the hallway currently has no ventilation. However, since in our floor plan the hallway in the basement, ground floor, and top floor is connected to the entrance area, as well as the living/dining room and kitchen without any doors separating them, I think that is quite acceptable.

red-ed27 Dec 2018 22:46

#10

andimann schrieb:
We simply routed out the top of the door frame slightly to create a channel approximately 10 mm (0.4 inches) high and about 500 mm (20 inches) wide. Of course, we didn’t foam that area when installing the doors... For us, that was completely sufficient.

Isn't that visually very unattractive?

opalau27 Dec 2018 23:26

#11

You won't see it at all (unless you are taller than the doors).

red-ed27 Dec 2018 23:53

#12

OK, now that you mention it... why did you do that? To save on supply and exhaust air ducts? Or is there a deeper reason?

ᐅ Tips and Tricks for Controlled Residential Ventilation Systems

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