Radiant floor heating is a type of heating method in which hot water at a temperature of not higher than 60°C is used as a heat source, circulating in a coiled tubing system buried under the floor, heating the entire floor, and uniformly radiating heat to the interior through the floor.
First, the most comfortable way of heating
Chinese medicine practitioners believe that "hot from scratch, cold from the foot." Modern medicine also shows that the internal organs of the human body can maintain normal physiological functions only under suitable temperature conditions. When the outside world becomes cold, the human body functions automatically. In order not to lose heat in the body, the blood in the hands and feet will return to maintain the temperature required by the internal organs. When the temperature at the foot is low, the blood vessels in the feet contract and the blood flow is blocked, which results in the systemic blood circulation not being smooth, so that the human body will feel cold. Therefore, warming people must warm their feet first. Only the feet are warm and the whole body will feel warm.
In the traditional heating method, the top of the room is about 30°C, and the body's position is especially 15°C or even lower in the foot. If you sit for a long time, you will feel cold legs, cold legs and feet will increase the risk of cold leg disease and arthritis.
Radiant floor radiation is the most comfortable way of heating, the indoor surface temperature is even, the room temperature from the bottom up with the height of the temperature gradually decreased, this temperature curve just in line with the physiological needs of people, giving people a comfortable feeling . At the same time, floor heating can promote blood circulation in the foot of the occupants, thereby improving systemic blood circulation, promoting metabolism, and improving immunity to a certain extent. In addition, the "hot foot cold" environment can avoid drowsiness, help improve memory, improve learning and work efficiency.
Second, high efficiency, energy saving, low operating costs
It can use various low-temperature heat sources such as waste water, solar energy, and geothermal; the floor heating method is more efficient than convection heating, and the heat concentration is within the height of human body benefit. The indoor set-up temperature is lower than the convection heating method by 2 to 5°C. , Can also make people have the same warm feeling, so the temperature difference heat transfer loss will be greatly reduced; heat medium low temperature transmission, heat loss in the transmission process is small, thermal efficiency; compared with other heating methods, energy saving rate is about 20% , If the partition temperature control device, energy-saving rate can reach 40%.
Third, environmental protection, health, health care
The heating principle of radiant floor heating is radiant heat conduction. Compared with air-conditioning, heating, etc. through forced convection cycle hot air heating, the dust flow in the air is much smaller, reducing the spread of harmful bacteria in the air, and the indoor environment is more hygienic and clean. The health of bronchitis, respiratory tract infections and allergic symptoms; air convection weakened, less water loss, overcoming the discomforts caused by traditional radiator heating methods, such as indoor heat, dry mouth, etc., and avoiding female skin being overly dry due to water loss. .
Four, do not occupy the use of the area, spending the same money is equal to buying a larger house
In our home life, we know that we cannot place furniture around the heating and its pipes. This not only does not allow the use of a considerable amount of the area to be used, but it also often causes great problems in determining the overall decoration style.
With floor heating, there is no longer a radiator and its branches in the room. It virtually increases the indoor use area by 2% to 3%. It is not only convenient for decoration and furniture layout, but it is undoubtedly a saving for the price of a few thousand yuan per square meter in a big city. Tens of thousands of dollars.
Fifth, long service life, maintenance-free, good safety performance, saving maintenance costs
Because the floor heating coils are all buried in the floor, if there is no human damage in the heating operation, there is almost no maintenance problem. The service life is more than 50 years, no corrosion, no scaling, greatly reducing the radiator running, The troubles caused by dripping, dripping, leaking and repairing to the occupants can save maintenance costs.
VI. Low initial construction and installation costs, partition control, convenient measurement, and easy management
Compared with other single-family heating systems, floor radiant heating does not increase construction costs and operation and maintenance costs. The temperature of each room can be independently adjusted and controlled according to needs, which facilitates separate household heat metering charges.
Seven, reduce floor noise
At present, China's floor slabs generally use prefabricated panels or cast-in-place slabs. The sound insulation effect is extremely poor. People walking upstairs will affect the downstairs, and the use of floor heating will increase the insulation layer. It will have very good sound insulation and reduce noise pollution. Floor heating The process is silent, the indoor environment is quiet, and there is no air-conditioning noise. This helps children focus on their studies, which helps improve learning efficiency.
VIII. Long service life
Low-temperature hot water floor heating, plastic pipe buried in the concrete inside the ground, if no one is damaged, the service life of more than 50 years, no corrosion, no scaling, reducing the radiator running, running, drip, leaking and other household trouble maintenance problems It also saves maintenance costs.
Construction process
Process: Construction preparation → Fixed points, water collectors → Laying of insulation layer and warm reflective film → Laying of buried warm pipes → Setting of expansion joints through the door → Intermediate acceptance (primary hydraulic test) → Backfilling of fine stone concrete layer → Completion acceptance (secondary hydrostatictest)
Advantages and disadvantages
Its advantages:
The ground temperature is uniform, and the room temperature gradually decreases from the bottom up, and the comfort is high.
The air convection weakened and the air cleanliness was good.
Compared with other heating methods, it is more energy efficient and the energy saving rate is about 10%-20%.
It is conducive to interior decoration and increase the indoor use area by 2%-3%.
Helps in sound insulation and floor crashes.
Radiant floor heating is used in tall spaces and is more effective than other types of radiator facilities, and thermal comfort is significantly improved.
Its disadvantages:
The surface of the buried pipe building increased by 8-14cm, occupying the height of the building.
When the ground is re-decorated, underground pipelines are easily damaged.
There are certain requirements for the decorative materials on the ground, such as the laying of wood floors, there is the trouble of dry cracking, the best choice of floor tiles or laminate flooring.
The set temperature can not be too high, otherwise it will greatly reduce the service life of the pipeline.
When the complex area of ​​the buried pipe and the floor area do not meet the conditions for laying pipelines, other types of laying facilities are often used.
The temperature rise at room temperature is slower than the radiator system.
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