This article, called "Six Harms of Floor Heating to Human Body", did not say the specific pathogenic principle, only said that it would cause disease, which was groundless and alarmist. Secondly, the so-called case, there is no specific case details, such as the name of the institution, research time and so on. , just like making it up out of thin air. The last "radiation pathogenicity theory" is even more nonsense. Even the classification of floor heating is not clear, so it is ridiculous to say that floor heating radiation destroys human magnetic field.
Is floor heating harmful to human body? Don't believe family rumors.
Floor heating is the abbreviation of radiant floor heating, which heats the whole floor evenly by radiating the heat medium in the floor, and uses the law of heat storage and upward radiation of the floor itself to conduct from bottom to top to achieve the purpose of heating.
According to the different heating methods, it is mainly divided into liquid circulation system and electric floor heating. In the liquid circulation system, hot water with the temperature not higher than 60℃ is used as the heating medium, which circulates in the heating pipeline to heat the floor and achieve the purpose of heating.
Is floor heating harmful to human body? Don't believe family rumors.
There are two kinds of electric floor heating: heating cable heating and carbon fiber electric heating plus electric heating film heating. The former uses low-temperature heating single-core or double-core cable as heat source, and provides indoor heat through ground radiation (primary) and convection (secondary) heat transfer. Double-core cable has no magnetic field and radiation. The latter uses translucent polyester film which can generate heat after being electrified to send heat into space in the form of radiation to warm the human body.
Is floor heating harmful to human body? Don't believe family rumors.
Where does the so-called injury come from?
Children with leukemia-with or without decoration experience, everyone knows that the new house needs to be vacant for a period of time after decoration, and can only move in after the toxic gas in the room dissipates. This is because a large amount of formaldehyde will remain after the renovation of the new house, and formaldehyde is a toxic gas, which has different degrees of harm to the human body. This is also one of the reasons why children suffer from leukemia.
Inducing cancer-The medical profession believes that there are several reasons for inducing cancer: environmental pollution, drug poisoning, food poisoning, bad living habits, chronic diseases, mental stress, overwork and so on. What has little to do with floor heating is environmental pollution, but in fact, "environmental pollution" here refers to air pollution, water pollution and other pollution, and the so-called "heating radiation causes cancer" is unlikely.
Is floor heating harmful to human body? Don't believe family rumors.
Affect the reproductive system-this is as unreliable as the saying that "coke kills sperm". The reasons that affect the quality of male sperm are unclean sexual life, smoking and drinking, warm environment, improper diet, exposure to toxic substances, drug damage, exposure to female substances and so on. Pregnant women with spontaneous abortion or fetal malformation do not rule out reasons such as excessive use of diet and electric blankets. It is far-fetched to say that it is caused by floor heating.
Lead to children's mental retardation-in this article, it is mentioned that "among the 20 million children born in China every year, 350,000 are mentally retarded, of which 250,000 are mentally retarded, and some experts believe that geothermal heating radiation is also one of the influencing factors". China has a vast territory, spanning five temperature zones, with various climate types. Not all places need floor heating, and it is not long to use floor heating all year round. Therefore, it is unconvincing that floor heating radiation is one of the factors leading to mental retardation in children.
Affect the cardiovascular system-after a little investigation, it will be found that the causes of cardiovascular diseases are mostly caused by improper diet, lack of exercise or other reasons, and eating appropriate food can prevent and alleviate the corresponding diseases. Floor heating radiation, especially hydropower heating, and hot water at 60℃ can cause such great harm is unheard of.
Is floor heating harmful to human body? Don't believe family rumors.
Thermal radiation leads to poor eyesight-the sentence "the radiation of geothermal heating is too high" in the article is really ridiculous. The hot water used for heating in liquid circulation system shall not exceed 60℃, and the temperature of electric floor heating is also controlled. How can it be "too high"? In addition, too high a temperature will lead to an increase in ground temperature, and the floor will crack and deform. It is impossible for consumers not to know these easy-to-understand truths. Poor eyesight, that's because I watch too much computer TV and use my eyes too much. I suggest consulting an ophthalmologist.
Common floor heating problems
1. How long is the service life of the floor heating system?
The service life of the floor heating system is mainly about the service life of the buried pipeline. Because the aboveground part can be replaced, the selection of the floor heating pipeline is the key to determine the service life. The pipes used in the floor heating system are generally plastic aluminum pipes, PE-RT (high temperature resistant polyethylene pipes), PE-X (crosslinked polyethylene pipes) and Pb (polybutylene pipes), among which PE-RT is divided into the first generation PE-RT and the second generation PE-RT; According to the crosslinking method, PE-X pipes can be divided into peroxide crosslinked polyethylene pipes (PE-Xa), silane crosslinked polyethylene pipes (PE-Xb), electron beam crosslinked polyethylene pipes (PE-Xc) and azo crosslinked polyethylene pipes (PE-Xd).
The operating temperature of the first generation PE-RT is below 65℃ and the working pressure is less than 0.4Mpa. The long-term working temperature of the second generation PE-RT and PE-X can be in the range of -40℃ to 85℃. PB pipe can be used at 95℃, and only high-end projects will use it because of its high cost. PE-RT and PE-Xb are the earliest, widest and most mature floor heating pipes in the floor heating system. They are safe, environmentally friendly and healthy. They are designed and used within the scope of normal product standards, and their actual life span is over 50 years. They are the most environmentally friendly floor heating pipes at present. It can be said that the floor heating system is basically equivalent to the life of the building.
2. How to control the floor heating temperature?
Floor heating needs to be used gradually, heating and cooling for the first time. When floor and floor heating, consumers should be careful not to raise the temperature for convenience.
Is floor heating harmful to human body? Don't believe family rumors.
When it is used for the first time, the temperature should be gradually raised in the first three days: the water temperature 18℃ on the first day, 25℃ on the second day, 30℃ on the third day, and it can be raised to normal temperature on the fourth day, that is, the water temperature is 45℃ and the surface temperature is 28℃ ~ 30℃. If the temperature does not rise too fast, the floor may crack and deform due to expansion. If you stop using it for a long time and use it again, you should also raise the temperature in strict accordance with the heating program.
It should be noted that when geothermal heating is used, the surface temperature cannot exceed 28℃ and the water pipe temperature cannot exceed 45℃. If this temperature is exceeded, the service life and service cycle of the floor will be affected. For ordinary families, the room temperature should reach about 22℃ in winter, and the normal temperature rise will not affect the use of geothermal floor.
When the weather gets warmer and the geothermal system is no longer needed for indoor heating, the process of shutting down the geothermal system should be gradual and not sudden. If the cooling speed is too fast, it will also affect the service life of the floor.
3. Which floor is suitable for floor heating?
The only floor most suitable for geothermal floor in the market is composite floor. Because the standard thickness of geothermal floor is 6.5 ~ 8.5 mm, and the thickness of composite floor is mostly 6 ~ 9 mm, among which the reinforced floor is mostly 6 ~ 8~9mm, and the three-layer solid wood composite floor is 8~9mm, the heat transfer performance is better, and its surface has an alumina wear-resistant layer, which is beneficial to the rapid diffusion of surface heat. Moreover, the composite floor is pressed at high temperature, and the internal water content is very small, so the floor will not be deformed due to water loss. The layers of multi-layer solid wood composite floor are criss-crossed and mutually restrained, and there are dense anti-deformation grooves on the back to decompose the stress generated by the heating surface, so the deformation is very small.
Solid wood floors are generally about 2cm thick, and the keel should be laid well when installing. If it is used as a geothermal floor, there is air between the floor and the ground, and the thermal conductivity of air and wood is very low, so the heat is not easily conducted to the surface, which will lead to heat waste, uneven surface temperature and obvious temperature difference. It is easy to crack and deform when heated at high temperature for a long time.