bis zu 95% Wärmerückgewinnung Feuchte & Schimmelregulierung Ständige Frischluft durch CO2-Monitoring
Premium ductless
Heat Recovery
Ventilation system
Made for

Premium Ductless Heat Recovery Ventilation System (HRV) HOKKAIDO from Passiv Energie

The HRV Hokkaido Fresh Air Heat Exchanger is the top product for decentralized ventilation systems in the Heat Ventilation, Air Conditioning (HVAC) industry. A healthy indoor climate is the highest priority, and with the HRV Hokkaido, demand-based fresh air supply is guaranteed even with closed windows. The sophisticated design of this system removes moisture and prevents dangerous mold formation. The integrated ceramic heat storage unit achieves a heat recovery of 95%, preserving heating energy and significantly reducing heating costs.

The HRV Hokkaido from Passiv Energie impresses with

  • its extreme performance,
  • high energy efficiency,
  • reliable functionality - even at the lowest temperatures.
1. wall mount
2. GaußFan 03
3. sleeve pipe
4. interior cover
5. heat storage honey-comb
6. outdoor cover
Hokkaido 401 Sektionsfoto Zentralregler VMPX
wall mount
GaußFan 03
sleeve pipe
interior cover
heat storage honey-comb
outdoor cover
central controller

This is how the HRV Hokkaido fresh air heat exchanger with VMPX-N works

1 2 3

The ceramic heat storage is heated by the warm indoor air flowing outward.

At intervals of 60 seconds, the fan changes its rotation direction, thereby reversing the airflow direction from exhaust to supply and vice versa.

The fresh outside air flows through the heat storage and enters the room as warm fresh air.

Abbildung des Luftstroms nach Außen. Abbildung des Luftstroms nach Innen.

Ventilation process

At intervals of 60 seconds, the fan changes its rotation direction, thereby reversing the airflow direction from exhaust to supply and vice versa. The fresh outside air flows through the heat storage and enters the room as warm fresh air.

60 Sec

35 Sec

17.5 Sec

52.5 Sec

An arrow pointing left of right depending on the state of the animation the seseragi 2 arrows pointing left of right depending on the state of the animation An arrow pointing left of right depending on the state of the animation Image of a fan with counter clockwise rotation Image of a fan with clockwise rotation

In the next 60-second interval, the stored heat is transferred to the fresh outside air flowing in.

In the first 60-second interval, stale air is expelled while its heat is retained.

Clock face image


It guarantees stable room humidity of 40 to 60% relative humidity. This is achieved by regulating the cycle between supply and exhaust air through a humidity sensor.


It prevents an excessive CO2 concentration in the indoor air and also keeps the potential viral load low. A sensor on the controller monitors the CO2 level. If necessary, the HRV Hokkaido switches to a higher ventilation level.

HRV Hokkaido

Product features

Entspannen bei komfortablen Wohnklima Bis zu 95%

High heat recovery

Our HRV Hokkaido achieves a high heat recovery of 93%. Preserving the heat energy generated in the house is not only economical but also ensures an improvement in the living environment.

Energieeffizienz auf Tablet einsehen

Low power consumption

With a power consumption of only 0.02 watts per cubic meter of transferred air, the HRV Hokkaido is particularly cost-effective and energy-efficient in operation.

Durchatmen auf der Couch Bis 80m³/h

High air exchange

Due to the high air exchange performance of 70 m3 per hour, an innovative ventilation system with the HRV Hokkaido is enormously effective and cost-efficient, as only a few fan units are sufficient for the entire house.

Wohlfühlen bei extremen Wetterlagen
Bis -30°C

Enormous weather resistance

Under extreme climatic conditions, the flawless functionality of the HRV Hokkaido is always guaranteed. Lowest temperatures, storms, or extreme humidity cannot affect it due to the powerful fan motor.

Allergische Reaktion verhindern

Allergy protection

As an option to the standard filter, the HRV Hokkaido can be equipped with our fine dust/pollen filter. This filter also captures mold spores, mite droppings, animal hair, ensuring clean and healthy indoor air.

Einfache Bedienung durch simplen Wandkontroller

Easy operation

The simple operation via the VPMX-N controller of the HRV Hokkaido is designed for intuitive handling. The easy-to-use controller with only four control elements can be effortlessly integrated into the living environment.

Anzeige der Luftfeuchtigkeit

Regulated humidity

The ceramic surface of the heat storage also absorbs moisture. With the optional use of the VMPX-NH controller, the indoor air maintains a stable humidity level of 40 to 60% rH. This is helpful for asthmatics or individuals with bronchial issues during the heating season.

Pflanzen CO2 Regelung

Regulated CO2 levels

The optional VMPX-AQ controller comes with a CO2 sensor. It monitors the CO2 concentration in the indoor air. When necessary, the HRV Hokkaido increases the fan speed, achieving a higher air exchange rate.

Stille auf der Couch genießen

Low operating noise

The HRV Hokkaido is designed with a double ball bearing for the fan, ensuring that during operation, depending on the baseline noise level, it is barely audible to not audible at all. This way, it does not disrupt everyday living.

Schimmelfreie Ecke

Prevents mold formation

Our HRV Hokkaido not only transports used indoor air but also expels indoor humidity to the outside. This prevents harmful mold formation even with closed windows and a sealed exterior.

Abkühlung mit Wassermelonen und Ventilator

Cools in summer

Since the ceramic storage not only stores heat but also cold, the HRV Hokkaido acts as a cooling system in the summer through the reverse operating principle.

Reinigung mit Spülmaschine

Easy cleaning and maintenance

The easily removable ceramic heat storage unit, along with the fan unit, can be cleaned manually or in the dishwasher at temperatures up to 40°C during the recommended annual maintenance. Replacing the filter is also straightforward and can be done with just a few simple steps. The controller automatically indicates when a filter replacement is due.

Good Design Award 2020 Patentiert ISO 9001


We are here for you

Christian Deutinger

"The requirements for residential ventilation systems can be summarized as follows: high functionality, cost-effective installation, efficient operation. The Hokkaido 401 meets these requirements and more, with top values in various product parameters. The HRV Hokkaido from Passiv Energie is the result of continuous development work. Tens of thousands of fan units have proven themselves in practical everyday use for years."

Christian Deutinger

Managing Director and Product Developer

Caroline Stiegler

"For architects, planners, and construction companies, we are S in the conception of residential ventilation. After receiving your floor plan, we define the optimal number and positioning of fan units. We do this quickly and straightforwardly."

Caroline Stiegler