Ventilation design must coordinate airflow, air quality, acoustics and safe penetrations. An MVHR datasheet does not verify the whole building.
Regulatory source
The current construction-register entry lists DBN V.2.5-67:2013, Heating, Ventilation and Air Conditioning, as active. An archived entry with the same reference also exists; use the current record linked below.
Supply, extract and rooms
ZeroHouse recommendation: prepare a room-by-room plan with use and occupancy assumptions. Coordinate airflow paths for bedrooms, bathrooms and kitchens, including with doors closed.
Mechanical ventilation and recovery
A heat exchanger does not prove adequate flow or balance. Check the unit operating point, duct resistance and commissioning results.
Air quality and acoustics
Airflow is only one part of indoor environmental quality. Consider pollutant sources, intake location, filtration and bedroom acoustics.
Fire coordination
Coordinate penetrations and materials with the building fire strategy. Do not specify dampers or seals from a general article without project-specific review.
Separate assessments
Duct calculations, acoustic review and maintenance planning are separate tasks. Numerical minimum flows and exceptions are not reproduced here; verify them against the applicable complete text.
| Item | Parameter | Check / result |
|---|---|---|
| Room | Use | Scenario |
| Ducts | Pressure and noise | Calculation |
| System | Actual airflows | Commissioning record |
What this means for your project
Request room airflows with their design basis, duct routes and commissioning records. Coordinate ventilation with backup power.
Sources and scope of review
Related reading
- Mechanical Ventilation with Heat Recovery: How It Works
- Airtightness: What It Is and Why It Matters
- Critical Loads: Where to Start with Backup Power