Alternate flow supply and extract fan with heat retention

The Mori HR is a continuously running, low energy, ultra quiet, alternate flow supply and extract fan with heat retention for use in habitable areas.

Ultra quiet
Heat retention
Various control options
Wide operating range

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A continuously running, low energy, ultra quiet, alternate flow supply and extract fan with heat retention for use in habitable areas such as living rooms, bedrooms, dining rooms, basements and hallways. The unit helps a room “breathe” and reduces indoor air pollutants and humidity levels. The unit is ideal for tackling problems associated with condensation dampness such as mould growth.


Every 70 seconds the unit alternates between supply and extract fan modes. When in extract mode the unit’s high efficiency ceramic heat exchanger collects and retains heat from the extracted air. The majority of this heat is then transferred to the incoming air during supply mode.

This method of operation avoids the short circuiting of air that can often happen with conventional single room heat recovery units, resulting in much more effective room ventilation.

Units can also be set to work in harmony with each other e.g. when a unit in one room is extracting air another unit in another room can be set to supply air. This can greatly enhance cross ventilation and ventilation effectiveness in a home.


Extremely low power consumption
Costs less than £2 a year to run for continuous operation on low speed.

Energy efficient
Integral Regenerative Heat Exchanger with up to 90% efficiency.

Ultra quiet
Almost imperceptible noise levels on lower settings.

Aesthetically pleasing
Attractive internal front fascia blends well with most wall finishes.

Wide application range
2 models each with 3 different airflow settings to choose from.

Rigorously tested to relevant standards
Each fan is individually tested prior to leaving the factory.

Optional user controller
Which can control 1-4 units allowing selection of off/speed 1/speed 2/speed 3/extract or supply only.

Each MORI HR has a 5 year warranty as standard*.


ModelMORI HR 100MORI HR 150
Airflow L/s6 / 4 / 76 / 11 / 17
Power W (maximum)1.2 / 1.7 / 2.61.4 / 2.3 / 3.8
Sound Pressure dB(A) @ 3m9 / 15 / 298 / 18 / 26

220-240V. 50Hz. Air performance measured according to ISO 5801 at 230V 50Hz, air density 1.2 kg/m3. Data measured in our TÜV Rheinland accredited laboratory. Pressure sound level at 3m in free field.


Full product brochure
Weight 50 kg
Dimensions 100 × 200 × 20 cm