TwinFresh Atmo mini local recuperator

Compact ventilation with heat recovery

VENTS TwinFresh Atmo Mini is a local single-room recuperator designed for installation in one 100 mm round wall opening. It is a standalone decentralized solution that exchanges air directly through the wall, making it an excellent choice where a traditional ducted system is not needed or not feasible. Because it uses a ceramic regenerative heat exchanger, it stores part of the heat from the exhaust air and returns it to the fresh air in the next cycle.

Main advantages

• Up to 81% heat recovery
  The ceramic regenerative heat exchanger helps reduce ventilation losses, so less energy is needed to heat the supply air.
• Automatic alternating operation
  The unit periodically reverses the airflow direction, enabling ventilation and heat recovery in the same duct.
• Very quiet operation
  At the lowest speed it reaches only 10 dB(A) at 3 m, making it suitable even for rooms where quiet is important.
• Convenient control
  An integrated control panel, included remote control, weekly schedule, night timer, Party mode, and filter and fault indicators make everyday use easier.
• Simple installation in one opening
  Installation requires just one 100 mm wall opening, with no need for extensive ductwork.

Operation and control

The unit offers three operating modes. In automatic mode, it works as a bidirectional heat-recovery ventilator, exchanging air in short cycles while retaining part of the energy. If needed, you can also select supply-only or exhaust-only operation, which is useful when you want to adapt performance to the characteristics of the room.

Control is via the integrated control panel on the unit or the included remote control. The weekly schedule enables more predictable use, while the night timer is triggered by the built-in light sensor, which detects darkness and adjusts operation accordingly. There is also a Party mode for temporary increased ventilation, for example when guests are visiting. The filter maintenance indicator reminds you in time of the service interval, while the fault or alarm indicator helps with quick problem identification.

The built-in humidity sensor supports automatic adjustment of operation, which is useful for maintaining more balanced conditions in the room and helping to prevent moisture build-up.

Installation

TwinFresh Atmo Mini is intended for installation in one 100 mm round wall opening and operates as an independent local solution. This approach is practical for renovations or in rooms where you want to improve ventilation without major construction work. The housing has IP24 protection, which means additional safety for everyday indoor use.

Proper operation is intended for transported air between -15 °C and +40 °C and ambient temperature between +1 °C and +40 °C. The maximum permitted ambient humidity is 65%, so the unit is intended for normal living conditions and not for permanently very humid, steamy environments.

Technical specifications

Frequently asked questions

Does this model have Wi-Fi or app control?
No. This is a basic model without Wi-Fi and without app control. Operation is via the built-in panel and the included remote control.

How efficient is it at heat recovery?
The manufacturer’s stated maximum heat recovery efficiency is 81%. In the Ecodesign energy test, a thermal efficiency of 71% is stated, which is a different measurement standard, so the figures do not contradict each other.

Is it suitable for a bathroom?
The unit has IP24 protection and is intended for indoor use at a maximum ambient humidity of 65%. For very humid or steamy conditions, suitability should always be checked according to the specific installation and operating conditions.

What is included and what is available as an option?
The built-in control panel and remote control are included. The standard filter is ISO Coarse >50% (G3), and upgrade options ISO Coarse >60% (G4) and ISO ePM1 60% (F7) are also available.

Conclusion

VENTS TwinFresh Atmo Mini is a well-considered solution for anyone looking for efficient single-room ventilation with heat recovery, without a complex duct system. With a ceramic heat exchanger, quiet operation, flexible modes and easy control, it offers a reliable balance of comfort, energy efficiency and practicality.