Heat recovery unit Wall-mounted WALLER 64
The WALLER 64 wall-mounted single room energy recovery unit is a modern device, designed for residential and commercial rooms where traditional ventilation units cannot be used. The unit combines the supply and exhaust functions, ensuring effective air exchange with heat and moisture recovery. Thanks to its compact design and remote control capability, the decentralised WALLER 64 energy recovery ventilator guarantees comfortable ventilation, simple operation, and real energy savings — both at home and in the office.
About the product
WALLER 64 is a decentralised, wall-mounted single room energy recovery unit, designed for direct installation in the wall — without the need to build a conventional duct system. It is a solution for houses, apartments, offices, and commercial premises where a standard ventilation unit cannot be used.
The unit combines the supply and exhaust functions, ensuring effective air exchange with heat and moisture recovery. Energy recovery is achieved through a modern ceramic exchanger, which transfers heat from the extracted air to the supply air, reducing thermal energy losses and lowering heating costs.
The fan with a reversible EC motor and a gravity shutter can operate in regenerative mode (alternating supply and exhaust with heat recovery) or ventilation mode. The compact design, remote control operation, and energy class „A” — which allows the unit to qualify for the „Clean Air” programme — make WALLER 64 a convenient and economical ventilation solution.
Key features
- Heat and moisture recovery through a ceramic exchanger
- Fan with a reversible EC motor and gravity shutter
- Ductless installation
- Operation in regenerative or ventilation mode
- Remote control operation
- Eligible for subsidy („Clean Air” programme)
Why choose the WALLER 64 energy recovery unit?
Ceramic exchanger for heat and moisture recovery
Thanks to the modern ceramic heat exchanger, the wall-mounted energy recovery ventilator effectively recovers energy from the extracted air, transferring it to the supply air and back into the room.
This, in turn, reduces thermal energy losses and, as a result, lowers heating costs.
Flexible operating modes and easy control
The unit can be controlled using a remote control and operate in two main modes:
- Regenerative — offering heat recovery through alternating supply and exhaust operation
- Ventilation — enabling independent operation as supply or exhaust (requires two units working synchronously to provide supply-exhaust ventilation)
Optional F7 filter
Ensure the effective and hygienic operation of your WALLER 64 wall-mounted energy recovery unit with the optional F7 filter. The F7 filter offers an ISO ePM1 ≥50% protection level for more demanding spaces.
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Technical specification
| Parameter | WALLER 64 |
|---|---|
| Product code | WALLER-64-2046 |
| Nominal airflow [m³/h] |
Stage 1 — 20 Stage 2 — 40 Stage 3 — 64 |
| Voltage / frequency [V/Hz] | 230 / 50–60 |
| Rated current [A] | 0.06 |
| Heat recovery efficiency [%] | 76 |
| Motor power [W] | 11.3 |
| Motor IP rating | 22 |
| Weight [kg] | 3.4 |
| Noise level* [dB] |
Stage 1 — 12 Stage 2 — 27.5 Stage 3 — 31.9 |
| Energy efficiency class | A |
* measured in accordance with the standard
Filters
| Filter | WALLER 64 |
|---|---|
|
Filtr F7 optional |
1 × FEU7-WALLER-2448 |
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WALLER wall-mounted energy recovery units are used in rooms where standard heat recovery cannot be applied.
The choice mainly depends on the requirements of the room.
- For example, you can choose the standard WALLER Wi-Fi model when you need basic ventilation with the possibility of heat and moisture recovery.
- You can choose a decentralised energy recovery unit with a CO2 sensor, which is used in rooms where the carbon dioxide concentration may rise, e.g. in boiler rooms. The wall-mounted energy recovery unit automatically adjusts the humidity level relative to the set value.
- You can also choose a wall-mounted energy recovery unit with an RH (humidity) sensor, e.g. in places where moisture removal is essential, such as basements or bathrooms.
Yes, such a combination will ensure even better air quality. For example, in a home of approximately 100 m², WALLER RH can be installed in the toilet instead of a standard fan, and WALLER CO2 in the living room. Such a setup will ensure the most effective air circulation, maintaining air quality relative to the set parameters.
WALLER energy recovery units feature a ceramic exchanger enabling heat and moisture recovery.
No, a Wi-Fi module is not available in the WALLER 64 energy recovery unit. To control the wall-mounted unit using the app, you need to purchase a wall-mounted energy recovery unit from the WALLER Wi-Fi or WALLER Wi-Fi CO₂/RH series.