With advancements in insulation performance, "i-cube" and "Naturia" will also support "Whole-House Sarapoka Air Conditioning"

Ichijo Komuten Co., Ltd. (President: Katsuhiko Makino, Headquarters: Koto-ku, Tokyo) will expand the product lineup compatible with "Whole-House Sarapoka Air Conditioning," which realizes a comfortable living environment that is cool in summer and warm in winter, and will begin support for "i-cube" and the new product "Naturia" from Friday, July 3, 2026.

"Whole-House Sarapoka Air Conditioning," which was previously only available for "GRAND SMART" and "i-smart" (standard insulation grade 7), will now be available for a wider range of products due to advancements in insulation performance. We will deliver this advanced living environment, which automatically optimizes the temperature and humidity of the entire house, to a broader range of customers.

*Target: Nationwide, excluding some areas.

"Whole-House Sarapoka Air Conditioning" is a whole-house air conditioning system that automatically optimizes the temperature and humidity of the entire house throughout the year. In summer, it cools and dehumidifies the hot and humid outside air through desiccant ventilation, and by circulating water through the pipes of the "Whole-House Floor Heating," it achieves a comfortably cool temperature. In winter, warm water flows through the pipes, providing warmth from the floor up. Thanks to high insulation and airtightness performance, it creates a comfortable living environment with minimal temperature differences between rooms.

In recent years, awareness of comfort in homes has increased, and housing performance that maintains a comfortable indoor environment throughout the year is being emphasized. In particular, measures against discomfort due to humidity, in addition to the severe heat of summer and cold of winter, are essential for realizing a healthy and comfortable life. Amidst this, whole-house air conditioning systems that automatically adjust the temperature and humidity of the entire house are gaining support as a new lifestyle option.

We believe that the expansion of compatible products this time will significantly broaden the options for customers seeking high insulation and airtightness performance and a comfortable living environment when choosing a home. Customers who were hesitant to install it before will now be able to experience the comfort of whole-house air conditioning in their preferred home.

Ichijo Komuten will further promote the creation of high-performance homes in response to the voices of a wide range of customers who value quality of life.

About Whole-House Sarapoka Air Conditioning

"Whole-House Sarapoka Air Conditioning" is the world's first* whole-house air conditioning system that realizes a comfortable air environment throughout the house all year round, thanks to Ichijo Komuten's original small desiccant technology. The desiccant method is a method of dehumidifying by adsorbing moisture onto an adsorbent, and it is used in shopping malls and buildings. Our company has succeeded in miniaturizing this desiccant dehumidifier. In summer, it ventilates while controlling humidity and temperature with two rotors, and absorbs excess heat from the entire house with floor cooling. Furthermore, the excellent insulation and airtightness performance of the house itself shuts out external heat, creating a comfort similar to a mountain resort.

*World's first in a whole-house air conditioning system for detached houses that combines a ventilation system with humidity control function by desiccant and whole-house floor heating and cooling. (Based on our own research as of December 2015)

Details of "Whole-House Sarapoka Air Conditioning": https://ichijo.jp/lp/sarapoka/

Two new products compatible with "Whole-House Sarapoka Air Conditioning"

・"i-cube" (Ai Kyūbu)

This is Ichijo Komuten's flagship popular model, combining high insulation performance with functionality. Its excellent insulation and airtightness performance, which thoroughly envelops the entire house, makes it less susceptible to external influences and maintains a comfortable indoor environment with less energy. It balances a stylish cube-shaped exterior with floor plans that pursue ease of living, realizing a home that excels in design, energy saving, and comfort.

・"Naturia" (Natyuria)

This product features a warm design with a Scandinavian concept. The warmth of wood harmonizes with a simple and sophisticated aesthetic, creating a natural and relaxing living space. Inheriting the Scandinavian philosophy of keeping the entire house warm with high insulation performance for comfortable living, it fulfills the form of a home that combines reliable housing performance with a relaxing design.