Contact Information Myeong Ho Han, Sales Assistant
Address
1048-1, Yongjeong-ri, Ganghwa-eup, Ganghwa-gun, Incheon, Korea
417-802
Phone 82-32-9345969
E-mail info@sunjoy.co.kr
What is Sunjoy?
Sunjoy's heating method makes use of the same principle as that behind the sun's radiation of the earth. Sunjoy Radiant-Heating System radiates and heats the place where it has been installed, providing warmth to the place's occupants while making the surrounding air pleasant.
Therefore, Sunjoy Radiant-Heating System is a perfect heating system: it does not create dirt, noise, odor, or humidity. Most of all, Sunjoy Radiant-Heating System incurs considerably low installation and maintenance costs compared to the other methods, and requires little repair or maintenance, such as changing the filters and cleaning the burner or pipe.
Sunjoy Radiant-Heating System's radiant heating offers warmth at a lower temperature, and is very efficient, enabling you to save 30-50% in terms of heating expenses.
Sunjoy Radiant-Heating System is revolutionizing the heating industry with Sunjoy's rapid radiant-heating technology, which is now being used in many commercial, industrial, and residential buildings.
Sunjoy Corp. is a pioneer in manufacturing low-output and highly efficient electric radiant-heating systems, and is an exclusive producer of the technology.
The electronic waves that deliver energy can be divided according to their wavelength. Those waves whose wavelength is between 4 and 14 are known to have highly active physiological effects that are well absorbed by and beneficial to living organisms like the human body. By radiating such far-infrared rays at a high efficient ratio, Sunjoy Radiant-Heating System offers efficient physiological activation and heating effects. Furthermore, Sunjoy Radiant-Heating System includes sliver nano, which provides the benefits of antibiosis and deodorization, as well as negative ions emitted from tourmaline.
Virtually, Sunjoy Radiant-Heating System is a four-season, well-being heating system.
Advantages of Sun joy
Sunjoy Heating System is a state-of-the-art heating system that employs the same method as that employed by sunlight, which travels through space in a vacuum and heats the earth. Although the surface temperature of its heating plates is about 95°C, it is safe. In fact, one can touch the plates with one's bare hand without being burned. Its coil-less, solid-state style and zero-inductance substance enable it not to emit any electronic wave, which is harmful to the human body.
Sunjoy Radiant-Heating System is semi-permanent, light, and easy to install. The material that was used for its exterior design is comparable to all high-end finishing materials for ceilings.
Over 93% of far-infrared radiant heat is absorbed deep into the human body, heating up over 70% of the water in the body. This heightens the body's physiological action and increases the body's temperature, thus making one feel warmer even when the heating system has been set at 3 or 4°C, lower than in the other existing heating systems.
Sunjoy's heating plates contain a ceramic material, and the far-infrared rays emitted from this ceramic material improve the blood flow. This is believed to be closely related to people's health and work efficiency. In fact, a test result shows that a plant in a room where this product has been installed has a much longer life span and much better health than another plant, which has been placed in a room equipped with the regular heating system (based on heat conduction or air circulation).

Product Specifications
| MODEL NO. |
Installation Types |
Voltage (volt) |
Current (Amp) |
Power Consumption (Kw) |
Amount of Heat Emission (Kcal) |
Size of Heat Emission Plate (m²) |
Size (mm) |
Weight (Kg) |
| SR-3 | Covered(M) Exposed(D) |
220 | 1.31 | 0.29 | 249 | 0.35 | 598x598x30 606x606x30 |
2.4 |
| SR-4 | Covered(M) Exposed(D) |
220 | 1.97 | 0.425 | 374 | 0.53 | 598x898x30 606x906x30 |
3 |
| SR-5 | Covered(M) Exposed(D) |
220 | 2.62 | 0.578 | 497 | 0.71 | 598x1,198x30 606x1,206x30 |
4.1 |
| SR-7 | Covered(M) Exposed(D) |
220 | 3.34 | 0.735 | 632 | 0.89 | 598x1,498x30 606x1,506x30 |
4.6 |
| SR-8 | Covered(M) Exposed(D) |
220 | 3.93 | 0.868 | 745 | 1.07 | 598x1,798x30 606x1,806x30 |
5.9 |
Certificate of the Test Conducted by the Korea energy Technology Institute

Structure of Sunjoy Radiand-Heating System
At the heart of Sunjoy Radiant-Heating System is a far-infrared ray panel, which consists of heat-resistant glass fiber plates to which an incombustible carbon plate that has regular resistance value evenly on its surface is attached. Its frontal surface makes it easy to spread radiant heat, while its backside is heat-resistant.
Once electricity flows through the heating panel, its temperature goes up between 85 and 105°C within four minutes, and over 90% of the total energy is evenly radiated as far-infrared rays. These far-infrared rays provide warmth to a room and to the people in it.
In a room with a traditional heating system, one that makes use either of air circulation or heat conduction, the overall room temperature must be increased until it reaches a certain point before the room's occupants could feel warm. This takes a long time. Sunjoy Radiant-Heating System, however, radiates far-infrared rays from its heating panels, and provides heat to a room selectively. Thus, it can quickly provide warmth to a room's occupants within a short time, without need of intermediates.
What are far-infrared rays?
Far-infrared rays are infrared rays whose wavelength is longer than usual (infrared rays whose wavelength is short are called near-infrared rays). As their wavelength is longer than that of the red zones of visible rays, far-infrared rays have high heating action. Invisible and easily absorbed by materials, far-infrared rays have strong resonance and sympathetic vibration actions against the molecules of organic composites.
In addition, light is usually reflected well if its wavelength is short. If its wavelength is long, it is more easily absorbed by materials when it comes into contact with them. Light with a longer wavelength is highly permeative, which explains why we feel warm when we come into contact with far-infrared rays. For example, we may not feel warm when we are submerged in water with a temperature of 30°C. However, we feel warm when we sunbathe at the same temperature. This is because the far-infrared rays in sunlight permeate deep into our skin and create heat.
This heating action helps get rid of germs that cause various diseases, and expands the capillary vessels, promoting blood circulation and cell generation. In addition, if these rays make contact with moisture and protein molecules that consist of cells, they shake these molecules slightly at the speed of 2,000 per minute. This action is believed to prevent various geriatric diseases and to slow aging, promoting physiological functions as well as treating chronic fatigue.
Other medicinal effects of far-infrared rays include promoting perspiration, alleviating pains, getting rid of heavy metals, promoting sound sleep, deodorization, antibiosis, preventing mold, dehumidification, and air purification. They are also used in various fields, such as in the construction of residential buildings, the heating of sauna rooms, and the manufacture of construction materials, kitchen equipment, textiles, clothing, beddings, and medical equipment.
Cancer Prevention
Cancer cells, due to their characteristics, are weak in high temperature and cause blood waste. Cancer tissues have a smaller number of hematoceles and thus find it difficult to produce heat. They also lack enzymes that can fight back against acid. The radiant heat released by infrared rays is effective because it functions within a temperature at which the surrounding normal cells are not damaged. Thanks to infrared rays, the creation of enzymes is promoted and the hematoceles are improved, allowing patients to recuperate from blood waste.
Lymph Nodes
The lymph nodes in a human body turn into acid when the human body experiences fatigue, due to the decrease in the density of hydrogen ions. Such acid state of the lymph nodes stimulates the nerves, causing various stress symptoms, such as sharp pains, paralysis, and other abnormal conditions. Far-infrared rays whose wavelength is between 7 and 30 µm prevent such symptoms through sympathetic vibration, absorption, deep penetration into the skin (which increases the temperature in the deep hypoderm), the expansion of the capillary vessels, and the promotion of blood exchange.
Menopausal Disorder
As the functions of the ovary deteriorate, the production of estrogen also decreases, and an imbalance occurs among the hormones in the endocrine glands that rule the sexual functions. As the discharge of estrogen decreases, the nerves of the hypothalamus or the blood vessels malfunction, which causes a disorder in the movement within the blood vessels as well as hyper-excitement, the unique symptom of menopause. The physiological functions of the hypohysis also change, and the amount of hormones in the blood or urine, which stimulate the follicle, increases.
Herpes Zoster
While it is strongly believed that herpes zoster is caused by a virus, this has not yet been confirmed. The pathogenic virus attacks the skin and nerves, and a number of small blisters in the zones governed by certain nerves can assume a zoster shape. If the condition is severe, it can cause ocular disorder. In many cases, herpes zoster can be treated within two weeks. In some cases, though, its treatment can last for several months.
Lumbago or Stomach Chill
Lumbago, like a stitch on the shoulder, can be caused by various physical distortions or other types of diseases. Far-infrared rays have high penetration power and heating effects, making the body warm from inside, improving blood circulation, and removing hyperaemia. Therefore, far-infrared rays can easily treat lumbago and stomach chill.
Leucorrhea
There is no better physical therapy for uterus contraction than the infrared method, which explains why many hospitals currently use this method after a patient's delivery. The treatment of severe leucorrhea can show excellent progress with the use of the infrared treatment.