Casals Kubalik 230 — reversible axial wall and window fan 450 m³/h with automatic backdraft damper

The Casals Kubalik 230 is a high-performance reversible axial fan designed for powerful and quiet ventilation through a wall or window. With a maximum airflow of 450 m³/h and an integrated automatic backdraft damper, the Kubalik 230 delivers efficient air movement in both directions while preventing the return of stale air, odours or rain when the fan is not running.

Reversible operation — extract or supply

Unlike standard one-way extractors, the Kubalik 230 operates in both directions. In extraction mode it removes stale air, odours and excess humidity from the room. In supply mode it draws in fresh air from outside. The direction is set at installation — no additional accessories required. This dual functionality makes the Kubalik 230 particularly useful in spaces where balanced ventilation is required without a full VMC/HRV system.

Automatic backdraft damper

The integrated automatic backdraft damper closes completely when the fan is switched off, preventing cold draughts, rain penetration, insects and the return of outside odours into the room. No manual shutter to operate — the damper opens automatically when the fan starts and closes when it stops.

Construction and materials

Housing and impeller manufactured from UV-resistant ABS — suitable for both interior and exterior exposure without fading or brittleness over time. Self-lubricating bearings ensure long service life without maintenance. The motor is equipped with integrated thermal overload protection that stops the fan automatically if the motor temperature exceeds safe limits, then restarts once cooled.

Installation

Designed specifically for wall or window mounting. Standard circular cutout installation — the fan body inserts directly into the wall or window thickness. Connects to standard 230V mains supply. The compact and lightweight design makes installation straightforward for both professional installers and competent homeowners.

Available options

The Kubalik range offers versions with factory-fitted automation:

• Humidity sensor — fan activates automatically when relative humidity exceeds the set threshold, ideal for bathrooms and kitchens
• Timer — fan continues to run for a set period after the room is vacated
• CO₂ kit — fan activates automatically when CO₂ concentration indicates the need for fresh air, ideal for bedrooms and home offices

Typical applications

Bathrooms, residential kitchens, home offices, small commercial spaces, bedrooms — any room requiring reliable, quiet ventilation through a wall or window without ductwork.

👉 Casals Kubalik 300 — 1,050 m³/h version for larger spaces 👉 Backdraft shutters for duct terminations 👉 Airflow calculator — find the right fan for your space

📞 +40 722 667 239 — free technical consultancy