aRheat 125 HS – high-efficiency local recuperator with automatic shutter, EC motor, and up to 90% air recuperation

aRheat 125 HS represents a new generation of local air recuperators designed for reliable ventilation of residential and commercial buildings, where the combination of high energy efficiency, quiet operation, and protection against backdraft of cold air is crucial. The device uses an advanced ceramic heat exchanger with a regenerative efficiency of up to 90%, enabling stable ventilation of spaces without heat loss, while reducing moisture and improving air quality.

Automatic shutter (aRheat Shutter) – protection against backdraft

The aRheat 125 HS model includes an upgraded automatic closing mechanism that completely closes approximately 3 minutes after the fan is turned off. This prevents the ingress of cold or humid air and significantly improves the sealing of the system. This functionality is crucial in buildings where floors or facades are exposed to wind and temperature differences.

Humidity sensor – intelligent response to humidity

The integrated humidity sensor allows for automatic regulation of the fan based on the measured humidity. Upon activation, the function automatically switches speeds when relative humidity exceeds 50%, 60%, or 70%, which is ideal for bathrooms, kitchens, bedrooms, and areas with high moisture concentration.
Thus, the system operates entirely autonomously and ensures constant quality of the microclimate.

Efficient EC motor and quiet operation

The built-in EC motor provides lower energy consumption and significantly reduced acoustic pressure, which in “silent” mode is only 13 dB. The system is also suitable for use in bedrooms and children's rooms where silence is crucial.
Power consumption ranges from 5.5 W to 9.5 W, depending on the operating mode.

G4 filtration and IPX4 protection

The standard G4 filter effectively removes dust and particles and protects the heat exchanger from accumulating impurities, thereby extending the lifespan of the device.
The IPX4 protection level allows for safe use in humid areas.

Easy installation and operation

aRheat 125 HS allows for installation from the inside of the building, significantly speeding up installation and reducing costs.
Operation is via a remote controller, with 3-speed settings available.

Airflows

• 20 m³/h – silent

• 30 m³/h – low

• 45 m³/h – medium

• 60 m³/h – high

Together with the recuperation system and integrated humidity sensor, aRheat 125 HS represents an excellent solution for users looking for reliable ventilation with recuperation and minimal heat loss.
We recommend purchasing for anyone seeking a high-performance local recuperator with automatic closing and top energy efficiency.