According to research and from the perspective of medicine and physiology, floor heating is the most comfortable and the most reasonable heating method for the human body. Warming in the West has been used for many years. From the perspective of human experience, floor radiation is a very comfortable way of heating: slowly heated on the ground, the heat slowly rises, it is not easy to cause contaminated air, indoor cleanliness, temperature distribution in line with human physiological needs, improve blood circulation, promote Metabolism, hygiene and health care. In addition, the electric heating efficiency is high, and no waste is generated, and the heat is concentrated in an effective height area benefited by the human body; the floor heating method is high in thermal comfort, and the floor radiant heating reaches an average room temperature of 16 degrees Celsius, and the convection heating room temperature is 20 The thermal comfort feeling of degrees Celsius is equivalent; the precise control of the thermostat enables the indoor temperature to be controlled by the user, eliminating the disadvantages of the conventional heating device, such as being difficult to adjust, and being unable to control. Constant temperature control is a reliable guarantee of energy saving, which not only reduces the set temperature but also saves energy.
There are two types of floor heating: heating cables or plumbing. Due to national conditions, the use of heating cables is now limited to small areas such as bathrooms (because electricity is not available). The advantage is that one-time investment can be controlled. Generally, the investment per bathroom is about 2000 to 4000 (about 8 square meters). Cable heating is generally imported directly from Europe. There is no problem and it is a relatively mature product. Easy temperature adjustment.
Electric heating also uses electric heating floor. The control of electric heating by radiant floor heating is relatively simple and reliable, and it is more flexible to control the room temperature separately. It can adjust the heating according to the room load demand, which not only saves energy, but also improves thermal comfort. Sex.
In addition, the use of electric floor radiation heating can also be used for free heat. Free heat refers to the extra heat of buildings, such as sunshine, accidents, the use of electrical equipment and personnel activities such as heat. The heating method of central heating can't adjust the output according to the free heat in the current situation and realize the use of free heat energy. Taking the influence of sunshine as an example, the temperature difference between the north and south rooms can often appear in the central heating indoor. The electric heating method can achieve room temperature control, so you can control the output according to the amount of free heat to eliminate the room temperature difference.
The heating method of water floor heating generally uses a central gas boiler, and then the PEX pipe is buried underground. The central gas boiler can provide hot water for living as well as warm water for floor heating. This type of one-time investment is relatively large, a central boiler is about 7500~8500 yuan, PEX water pipes are laid in an average area of ​​about 200 yuan per square meter. PEX tubes are generally marketed in South Korea. This kind of water-heating project installation and PEX materials are key. There are many companies offering water and floor heating on the market.
No matter what kind of floor heating materials are used, floor heating must be used for special floor or floor tiles. If the above two options are small and only need to be installed in the bathroom for bath heating, it is recommended to use cable to warm the floor. If most of the bedrooms are to be warmer than warm water, such small-scale gas water heaters need not be bought, and at most one more electricity can be purchased. Water heater.
The water heating plan, the central gas boiler and the water pipes are all imported from South Korea. The boiler is a 25,000 kcal boiler from South Korea's Guidalaimi. It is less than 8,000 yuan. The PEX floor heating pipes laid underground are South Korea’s LG or Qingdong, with the exception of Japanese-style rooms. In addition, all rooms are paved, including toilets and kitchens, totalling about 130 square meters per square metre.
Floor heating method: total thickness of about 75mm, from the embryonic ground upwards are: 1. moisture barrier; 2. 20mm polystyrene foam plastic insulation layer; 3. wire mesh; 4. PEX floor heating water pipe; Cast-in-situ cement layer; 6. Floor: Geothermal special composite floor or floor tile or floor leather;
Actual expenditure list:
1. Korean KITURAMI Boiler: Model W2000-25D, Price 7970.-2. Floor heating (including ground insulation, Korea Qingdong PEX water pipe, cast-in-place cement, etc.): 110.-/ square meter, 130 square meters, a total of 14300.-; 3. Korean water separators: 3 upstairs + 5 downstairs, 2 each, 100 yuan each, total 800.-; 4. The heat sink in Florence, Italy: Model SU-C-21-1 (500x600x76mm), 1 , 858.-;5. Italy GIACOMINI automatic temperature control valve: 1, 200.-; 6. System installation and material costs: 500 yuan; 7. Shipping: 100 yuan;
The boiler is equipped with a thermostat, which can control the water temperature. The thermostat can be placed in the living room. The temperature of each room can only be adjusted by controlling the water flow rate of the outlet valve of each circuit on the water separator. Each room is usually a loop. The ground heating pipe of each circuit is the whole no-connector, so there is no worries buried underground.
KITURAMI's boilers are supplied separately by two sets of warm domestic hot water systems, and the ground heating system is a fully enclosed circulatory system. Normally working in heating mode, domestic hot water can be used at this time, but warm water supply is a priority, so the temperature of domestic hot water may change with the operating conditions of the floor heating system. It is not suitable for bathing, but washing hands and face What kind of food is appropriate? If you want to take a bath, you must press the bath function key. At this time, the domestic hot water supply is prioritized. That is to say, even if the room temperature is lower than the set value, the floor heating hot water circulation pump will not start, so as not to cause heat of life. The temperature of the water changes. Considered very thoughtful, easy to use.
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