Environmental Business Research Institute - EBRI - “Mi-chan’s Adventure!” NO.19 Passiv Energie Japan Inc. Environmental Business Research Institute EBRI

  • “Mi-chan’s Adventure!”

  • http://www.passivenergie.jp/NO.19 Passiv Energie Japan Inc.

    In front of the office

    (heat exchanging ventilation system)

    【Introduction of the product】

    This company handles planning, manufacturing, sales, and wholesaling of the ductless heat exchanging ventilation system named “Inventor.” The structure of this product is rather simple, as it is composed of six parts, namely, indoor cover, filter, ventilation fan, heat storage element, sleeve pipe, and outdoor hood.
    The most important part is heat storage element. Aluminum oxide-turned ceramic heat storage element can absorb heat and moisture of the room air. As it has a porous surface, the extremely large surface area can achieve a high absorption rate.
    Another characteristic point is the ventilation fan, which runs at low voltage of15V, and is highly safe with no problem by touching it or unplugging. Its electric power consumption is only 3 watts, which is equivalent to that of LED lighting, and it can be operated with very little noise.
    This product is ductless, embedded into the outer wall, and can be equipped anywhere easily. Normally, this kind of system is equipped at one spot of a room, but two units are operated as a set in this product to perform intake and exhaust of the air alternately in every 70 seconds to keep the fresh air flowing in the room in the according directions. This is the unique characteristic of this system.

    (Structure of this System)

    The outside air is taken into a heat storage element, and after absorbing heat and moisture there, it is supplied into the room. The room air is taken into another heat storage element and discharged outside after storing the heat and moisture there. These operations are switched alternately once every 70 seconds.

    When the outside temperature is 0℃, for example, the air supplied into the room after passing this system becomes 18℃.
    Compared with the electric bill required for heating and cooling air by the ordinary ventilation system, 46% of the electric bill can be saved by using this system, 21% can be saved than other duct-type ventilation system.
    Heat exchange rate of Inventor is higher than that of other companies’ ductless ventilation system.
    Generally speaking, in ordinary houses, heat loss by ventilation is extremely large as well as that through walls and windows. The ventilation system like Inventor, therefore, is expected to draw more attention in future.
    Unlike conventional systems, this system does not require piping and is hygienic. In other systems, as the duct gradually gets dirty inside and unavoidably supplies dirty air into the room. Companies concerned about the unclean duct have mostly become users of Inventor.

    Since 2003, installing a ventilation system has become compulsory for all new constructions. Ventilation is vital as precautions against Sick-house Syndrome and allergies. Heat exchanging ventilation system can ensure comfortable room environment.

    (Summary of the Characteristics)

    1、Easy installation and maintenance
    2、Energy conservation (reduction of CO2 emission)
    3、Remarkably low running cost
    4、Higher heating and cooling efficiency
    5、Prevention of Sick-house Syndrome caused by dampness and condensation
    6、Prevention of heat shock

    So far, this system has been mainly installed in detached houses, but it can be used in apartments as well, and recommendable to avoid condensation in apartments.

    In Germany, once achieving 8,000 units of sales, the highest in the market, the annual sales reached 31,000 units last year.

    In front of a model house under construction

    Inventor is embedded in the wall.