Floor heating system is the abbreviation of floor radiation heating system. It is called floor heating system because underfloor heating itself is not a single product. Underfloor heating generally appears in the form of a system. Underfloor heating system includes heat source, pipelines and corresponding auxiliary materials. It is one of the most comfortable and healthy independent heating methods for families.
-
Concept
Floor heating system is the abbreviation of floor radiation heating. It uses the entire floor as a radiator. The heat medium in the underfloor radiation layer is used to evenly heat the entire floor. The heat storage of the floor itself and the law of heat radiation upward are used to conduct from bottom to top to achieve the purpose of heating. Because the temperature gradient gradually decreases from the soles of the feet to the head in the room, it gives people a comfortable feeling of warm feet and cool head. Floor radiation heating conforms to the fitness theory of “warm feet and cool head” in traditional Chinese medicine. It is the most comfortable heating method at present and a symbol of modern quality of life.
2. History of underfloor heating
Floor radiation heating (abbreviated as underfloor heating) is an ancient and new technology. In China, floor heating can be traced back to the end of the Ming Dynasty. It was a heating method that only the royal family could have. For example, in the existing Forbidden City in China, a flue was built under the blue brick floor. In winter, smoke was transmitted through the flue and smoke windows were reasonably configured to achieve the effect of warming the blue bricks and then transmitting them to the room, making the room warm. Later, the heating methods of fire walls and kangs appeared in rural areas in northern China, and kangs appeared in South Korea and Japan. From ancient times to the present, mankind has continuously inherited civilization, pioneered innovation, and developed and progressed. Now with the advent of the technological era, floor heating technology has developed from the original flue heat dissipation kang heating to underfloor radiation heating with modern materials as heat medium. This technology began to be used in developed countries as early as the 1930s, and China had applied the technology to projects such as the Great Hall of the People and the Overseas Chinese Hotel in the 1950s.
3. Working principle of underfloor heating
Floor radiation heating is an advanced heating method. Its working principle is to pass circulating hot water into the heating pipe loop under the laid floor or floor tiles or directly lay heating cables to heat the floor. The heat is gently and evenly dissipated to the space above the floor through a large area of the floor, mainly in the form of radiation, so that the human body can feel the dual thermal effects of heat and air temperature.
4. Classification of underfloor heating
The floor heating system is mainly divided into low-temperature hot water underfloor radiation heating (water floor heating) and heating cable floor radiation heating (electric floor heating) according to different heating methods. Low-temperature hot water underfloor radiation heating is a heating method that uses hot water with a temperature not higher than 60°C as a heat medium, circulates in the heating pipe, heats the floor, and heats the room through the ground by radiation and convection heat transfer; heating cable floor radiation heating is a heating method that uses low-temperature heating cables as a heat source, heats the floor, and heats the room through the ground by radiation and convection heat transfer.
4.1 Water underfloor heating
Water underfloor heating refers to a heating method that heats water to a certain temperature, transports it to the water pipe heat dissipation network under the floor, and achieves the purpose of heating through the underfloor heating.
4.2 Electric underfloor heating
Electric underfloor heating is a heating method that buries a heating cable with an upper limit of 65℃ on the outer surface in the floor, heats the floor with the heating cable as the heat source, and controls the room temperature or floor temperature with a thermostat to achieve ground radiation heating. It mainly has the advantages of comfort, energy saving, environmental protection, flexibility, and no maintenance.
5. Advantages of underfloor heating
5.1 Comfortable heating
Even heating, uniform constant flow of heat energy from bottom to top, forming a gradient temperature difference, the human body feels very comfortable, which fully meets the physiological needs of the human body. It fully demonstrates the health concept of “warm feet and cool top” advocated by traditional Chinese medicine. Even in the cold winter, you can still enjoy the feeling of spring indoors.
5.2 Double energy saving
Small thermal inertia, rapid heating, economical and power saving, slow rate of residual heat decline when closing doors and windows, and the cost of use saves a lot of non-renewable resources compared with traditional methods, which is conducive to sustainable development.
5.3 Health care effect
Using the new far-infrared radiation principle, micron infrared rays are generated during operation. Medical clinical trials have proven that floor heating has significant effects on the elimination or relief of cardiovascular diseases, back and leg pain, arthritis, frozen shoulder, cervical spondylosis, gastrointestinal diseases, and gynecological diseases.
5.4 Easy to use
Users can adjust different indoor temperatures according to their needs, use them separately, and heat them on demand at fixed times and locations. It is as simple as using electricity, saving energy and money.
5.5 Safe and reliable
Insulation, flame retardant, waterproof, there will be no leakage of electricity to touch people, and there will be no leakage of electricity, water leakage, air leakage, hot scalding, pipe explosion and other phenomena that endanger personal safety in traditional heating.
5.6 Long life
The carbon crystal heating plate can guarantee a long service life of more than 100,000 hours (equivalent to 50 years), no replacement or maintenance is required, and it can be installed in one go.
5.7 Policy support
The floor heating system actively responds to the national electricity consumption period “peak, valley, flat” billing preferential policy, and the temperature controller can be used to flexibly set different time periods.
5.8 No area occupied
It can be installed under composite floor, floor tile, marble and other floor materials. And does not occupy the home area, so that the tight housing space can be fully utilized. It also eliminates the boiler room, heating plant, indoor and outdoor pipe network, heat sink and other space occupied by traditional heating, saving housing space, saving land resources for the country, and reducing the housing prices for real estate developers and residents.
5.9 Economic and cheap
The heating is stable, the heat dissipation is slow after closing, and the thermal insulation is good. The monthly use fee is economical and affordable, which is one-third of the air conditioning heating.
Reasonable use will reduce it to a lower level.
5.10 Green and environmentally friendly
No harmful gas emissions, no noise and dust pollution, no problems such as air occlusion and dryness, using clean electricity and opening and use, forming a hygienic and clean living environment.
