Smart Selection Guide
MVHR & Ventilation System Calculator
Smart selection guide. Calculate accurate residential airflows and discover the optimal heat recovery unit for your home in minutes.
Takes only 2 minutes
Quick and simple process that saves your time
Instant resultsNo registration required
Maximum comfort for your home
Smart Selector
Takes only 2 minutes
Quick and simple process that saves your time
Smart ORO Haus algorithm
Flow and pressure load analysis based on your rooms
99.8% precision match
Optimal MVHR unit capacity selection
100% free recommendation
Download ventilation system guidelines instantly
Already helped 120+ visitors start their search★★★★★
PROJECT
Project
2.7m
ROOMS
Rooms
Start from a layout
Pick a typical room layout and tweak it, or add rooms one at a time.
| Room | Area | Floor | People | Airflow | Direction |
|---|
Where shall we start?
Pick a ready-made room layout or start from scratch.
FAQ
Frequently asked questions
Common questions on how to choose a heat recovery unit and calculate your ventilation system requirements.
Recommendation and planning guidance. This is not a final ventilation design.