EVENT / NEWSイベント/ニュース

2025.09.26

A windless, silent, and comfortable space at your Karuizawa villa: Radiant heating and cooling panels

Heating and cooling are essential to making your time at home comfortable.
However, because conventional air conditioners regulate temperature by wind, they can cause problems such as dryness, the scattering of dust, and chills to the body.

Even at a villa in Karuizawa, you can enjoy a comfortable and healthy lifestyle by installing radiant heating and cooling panels that create a windless, silent and pleasant air environment.

Radiant heating and cooling panel system

This 25mm-thick radiant heating and cooling panel system fits perfectly into minimalist homes. Unlike air conditioners that adjust room temperature using wind, this system creates a windless, silent indoor air environment. Radiant heating transmits heat directly to objects, warming the room evenly. Cooling is achieved by cooling the panel with cold water, absorbing radiant energy and cooling the entire room. It also eliminates the health and beauty risks of artificial air conditioning, such as a drop in body temperature and dehydration, as well as respiratory and mucosal problems, dry eyes, and air-conditioning illnesses caused by harmful substances and dust. It also efficiently regulates room temperature compared to conventional air conditioners, reducing energy consumption by approximately 30%.

A windless, silent and comfortable space

These radiant panels do not produce any wind or noise, making them perfect for the quiet space of a vacation home. They are also ideal for creating a comfortable sleeping environment, or for times when you want to concentrate on work, hobbies, or reading.

                                    

What is the mechanism behind the radiation type?

·heating

The heat is transmitted directly to objects, so the space is heated evenly. The warm heat reaches your feet directly, making your whole body warm.

·cooling

By cooling the panels with cold water, they absorb radiant energy and cool the entire room. The temperature feels 2 to 3 degrees Celsius lower than the ambient temperature, making you feel as if you've entered a tunnel or a limestone cave.

                                   

Safe to touch panel

The temperature of the water flowing through the panel is low, ranging from 8 to 50 degrees Celsius, so there is no risk of burns when touching it, and it can be used safely and comfortably by everyone, from children to the elderly.

Number of outdoor units

Many people living in detached houses own three to four air conditioners*1. Usually, one air conditioner requires one outdoor unit, so there are three or four outdoor units. This takes up valuable space on the property. In contrast, with the radiant heating and cooling panels we use, only one heat pump is needed for the entire house. This not only keeps the interior of the house neat and tidy, but also saves space on the exterior. *1 MyVoice Communications "Internet Survey on Home Air Conditioners (No. 9)" (Click here for details)

                            

Significant reduction in maintenance and equipment renewal costs

Air conditioners are electrical appliances with a lifespan of approximately 10 years. Since they are installed at the same time as new buildings, they tend to reach the end of their lifespans and are due for replacement at the same time. On the other hand, radiant heating and cooling panels are non-powered themselves, so they have a long lifespan; unlike air conditioners, only one heat pump needs to be replaced. In terms of maintenance, compared to air conditioners, there is no need for fan or duct cleaning or boiler maintenance, so they are designed to keep costs down. The main daily maintenance required is wiping away dust and debris from the drain outlets of the drain pans installed under each radiant panel, so it is easy and hassle-free.

Energy reduction and safety

It reduces energy consumption by approximately 30% compared to conventional air conditioners. Because it does not use open flames, indoor safety is maintained throughout the year. It can be used safely even in homes with children.

A windless, silent radiant heating and cooling panel that is gentle on the body and the environment.
It creates a natural and comfortable air environment that cannot be achieved with an air conditioner, while also reducing energy consumption and being easy to maintain.

What will be required of homes in the future is comfort, energy efficiency, and consideration for health.
it's House offers a new style of home that allows you to live safely and for a long time through radiant heating and cooling panels.