Question 1

Do I need to register or leave an email?

Accepted Answer

No — you see the result immediately. If you want to save the link and come back later or forward it to your architect, you can do that with one click.

Question 2

What data do I need to enter?

Accepted Answer

Just floors, ceiling height, and a list of rooms with their areas. Detailed duct lengths and pressure losses are not required at this stage — we calculate them for you.

Question 3

What happens after the recommendation?

Accepted Answer

You can save the result as a link, forward it to yourself or to an architect, or send the calculation for expert review and receive feedback within 1–2 business days.

Question 4

Do you offer installation and design services?

Accepted Answer

Yes. After the recommendation we can offer full design, supply, and installation through the ORO Haus partner network, or supply just the unit if you already have an installer.

Question 5

What algorithm powers the selection?

Accepted Answer

The smart ORO Haus algorithm analyzes airflow and pressure loads based on each room’s purpose, area, and floor layout. That way we match the right MVHR unit for your actual home — not just by raw capacity.

Question 6

How precise is the selection?

Accepted Answer

It uses residential ventilation standards together with verified manufacturer technical data — the match rate against real-world conditions is ~99.8%. We still recommend confirming the final design with an ORO Haus engineer before purchase.

Question 7

Is the recommendation really free?

Accepted Answer

100% free. You can download the ventilation system guidelines instantly, with no strings attached.

Find the Right AHU for Your Home

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Smart Selector

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Smart ORO Haus algorithm

99.8% precision match

100% free recommendation

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