Compared with traditional heating methods, geothermal heating has many advantages, but what kind of floor is most suitable for geothermal heating, how to choose geothermal floor? How is the geothermal floor covered? How to repair and maintain it? These problems are believed to be unknown to many people. The reporter visited the relevant experts for this purpose.
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Home. Src="" onload="javascript:if(this.width>screen.width-333)this.width=screen.width-333" border=1> What is the floor for geothermal heating?
Answer: Composite flooring is more suitable for geothermal heating
In general, the quality of imported flooring meets the European Enpr13329 standard, and the domestic flooring quality meets the national GB/T1802-2000 standard, which can be adapted to the technical requirements for geothermal heating floor installation.
May look at these general standards, some readers still do not know what kind of product should be selected. There are many types of flooring on the market today, including solid wood flooring and laminate flooring. In general, laminate flooring is more suitable for geothermal flooring. Because the standard thickness of the geothermal floor is 6.5-8.5mm, the thickness of the composite floor is mostly 6-9mm, of which the reinforced laminate flooring is mostly 6-8mm, the three-layer parquet is 8-9mm, and the heat transfer performance is better. , And the surface of a layer of aluminum oxide wear layer, this wear layer is conducive to the rapid diffusion of heat at the surface.
The thickness of solid wood flooring is generally about 2cm. When installing it, the keel must be used. If it is used as a geothermal floor, there is air between the floor and the ground. The thermal conductivity coefficients of air and wood are very low, so that the heat is not easily transmitted to the surface and can cause heat. The waste is caused by uneven surface temperature and obvious temperature differences. And the laminate flooring is pressed at high temperature, and the internal moisture content is very small, so the floor will not be deformed due to moisture loss. Each layer of multi-layer solid wood flooring is intertwined horizontally and horizontally, restraining each other, and there is also a dense anti-deformation groove on the back surface, which decomposes the stress generated on the heated surface, so the deformation is very small.
The solid wood floor has a high moisture content and is easily cracked and deformed when heated at a high temperature for a long time. If you must use ordinary solid wood flooring, you should try to use the back of the film layer floor, because it can prevent moisture and moisture, and can maintain the wood moisture content and the ambient humidity balance.
Relevant experts believe that the choice of a geothermal floor should be based on the specificity of the geothermal heating method; it should be adapted to the repeated transformation of heat and heat and conducive to heat conduction. In the same environment, the solid wood floor has more deformation than the reinforced floor, and the reinforced floor has more layers of wood floor deformation.
In addition, it is also best to meet the following points:
First, the dimensional stability is better
This depends on the substrate density and internal bond strength of the floor. The higher the internal bond strength, the better the ability of the floor to withstand temperature changes and the phenomenon of cracking will not occur. Only the floor of the wood material with relatively dense wood can ensure Long time no cracking or deformation under high temperature.
Second, not afraid of the humid environment
That is, the water absorption thickness expansion rate. The floor used for water-heated floor radiant heating requires a small dimensional change in a high-humidity state and an expansion rate of 2.5% or less. In general, the smaller the expansion rate, the better the moisture resistance of the floor.
Third, formaldehyde emission can not exceed the standard
It is required that the amount of formaldehyde released will not exceed the standard in the condition of prolonged heating. When consumers choose geothermal floor, we must choose the floor with low formaldehyde content as possible, because the higher the temperature, the more formaldehyde emission, in the relatively closed residential room, plus the release of formaldehyde caused by other indoor articles, indoor formaldehyde has It may exceed the standard and cause harm to the human body.
Fourth, heat transfer faster
There are not many brands on the market that can provide heat transfer coefficient. Consumers should pay attention when buying. Products with high general coefficients perform better in terms of heat conduction.
Fifth, not afraid of high temperature
Because the geothermal floor should withstand high temperature heating for a long time, it is required that the decorative layer of the product be stable in performance, and that under the condition of high temperature for a long time, there will be no fading and rough light.
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Question mark two hot floor how to pavement?
Answer: First, the ground handling before installation should be detailed
The ground must be level within a radius of two meters, and the height difference must not exceed 3mm. The ground must be completely dry. Before laying the floor, a geothermal heating test must be performed. The inlet water temperature should be at least 50°C to ensure that the heating system operates normally. And to keep warm for more than 24 hours to make the ground dry, to ensure that the moisture content meets standards.
Second, the installation process details are the most important, the order of stress
It is best to use a suspension type installation method. The floor is closely attached to the ground through the cushion material, there is no gap between the floor and the surface, and more shrinkage gaps are reserved between the floors. Since the amount of tidal gas released by hydrothermal radiation is large, it is necessary to work hard to prevent moisture.
When paving, you must first clean the floor. Pay attention to clean the corners and ensure that there are enough expansion joints. The second step is to lay a layer of plastic cloth on the ground to cut off the moisture. The plastic sheet should be 10cm above the ground at four corners. The third step is laying floor mats. Be careful to leave expansion joints, overlap at least 5cm at the interface, and must be sealed with tape. Use a skirting board that is thicker than a normal floor and use it separately. The floor can only warm up after 24 hours of installation. In order to facilitate heat conduction, the cushion material should not be too thick.
In addition, the use of special geothermal floor glue; can not be paved; can not play keel, because this will leave air between the gap, the air's low thermal conductivity, is not conducive to heat transfer.
Third, to use special paper floor mats
The floor mat between the floor and the floor can not use the ordinary foam floor mat, must use the geothermal special paper floor mat, because this type of floor mat has fast heat conduction and does not deform. Ordinary foam mats have low thermal conductivity and are exposed to high temperatures for a prolonged period of time, and are prone to harmful gases that endanger the health of users.
Fourth, the surface temperature during construction can not be too high
Whether it is a hydrothermal radiation heating system or a cable heating system, do not produce stoves, electric furnaces, etc. on the ground. If the surface temperature is too high, the aluminum-plastic composite pipeline under the ground may melt.
Because of the special features of the geothermal floor and the complexity of the geothermal system, compared with the ordinary floor, the maintenance and the maintenance of the geothermal floor have their unique features. Special attention should be paid to the heating and moisturizing.
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Question 3 How to maintain the geothermal floor?
Reply:
First, heating should be gradual when used for the first time
When using geothermal floors, consumers must pay attention to the gradual heating of floors and floors. When installing, the surface temperature should be maintained at about 18°C. Before installation, gradually increase the temperature of the concrete floor by 5°C per day until it reaches the standard of about 18°C. In the first 3 days after the installation is completed, the temperature should be maintained. After 3 days, the temperature can be increased as needed, and the temperature can only be increased by 5°C per day.
The first use of geothermal heating, attention should be slowly warming. When used for the first time, gradually increase the temperature in the first three days of heating: the first day of water temperature is 18°C, the next day is 25°C, the third day is 30°C, and the fourth day can be raised to normal temperature, ie, water temperature 45°C, surface temperature 28 °C ~ 30 °C. Can not warm up too quickly, too fast, the floor may be cracked due to expansion.
When the geothermal heating system is turned on again after a long period of time, it must be heated in strict accordance with the heating procedure as it was for the first time.
Second, the surface temperature can not be too high
It should be noted that with geothermal heating, the surface temperature should not exceed 28°C, and the temperature of the water pipes should not exceed 45°C. If this temperature is exceeded, the service life and life cycle of the floor will be affected. In general families, when the room temperature in winter reaches about 22°C, it is already very comfortable. If the temperature rises normally, it will not affect the use of geothermal floors.
Third, close the geothermal system, pay attention to gradual cooling
With the passage of the seasons, when the weather is warm and indoors no longer requires geothermal heating, attention should be paid to shutting down the geothermal system. There must also be a process of cooling down the floor. The cooling process of the floor must also be gradual, not abruptly reduced, if the cooling rate is too fast, It will also affect the life of the floor.
Four, when the room is too dry, you can consider humidification
In winter, the climate is dry, and geothermal heating is used. If the floor is exposed to high temperatures for a long time, it will be easy to crack. At this time, the owner must humidify the room so as not to crack the floor.
During the renovation, attention should be paid to not punching holes or nails on the ground so as not to leak geothermal pipes, causing the geothermal system to run out of water and the floor foam to be scrapped. In addition, because the surface of the floor is a heat-dissipation surface, the floor should not be fixed or decorated with legless furniture. It is also not suitable to build a platform to avoid affecting the flow of hot air, resulting in poor heating of the room.
Due to the relatively high surface temperature of the floor, it is best not to place glassware and chinaware directly on the ground in winter when using a geothermal heating system, so as to avoid uneven heating, heat expansion and contraction, and rupture of the vessel. .
Geothermal floor has become a fashion decoration in home decoration, but everyone must pay more attention to detail when purchasing and paving, especially in terms of maintenance, the requirements for geothermal floor are higher.
Answer: Composite flooring is more suitable for geothermal heating
In general, the quality of imported flooring meets the European Enpr13329 standard, and the domestic flooring quality meets the national GB/T1802-2000 standard, which can be adapted to the technical requirements for geothermal heating floor installation.
May look at these general standards, some readers still do not know what kind of product should be selected. There are many types of flooring on the market today, including solid wood flooring and laminate flooring. In general, laminate flooring is more suitable for geothermal flooring. Because the standard thickness of the geothermal floor is 6.5-8.5mm, the thickness of the composite floor is mostly 6-9mm, of which the reinforced laminate flooring is mostly 6-8mm, the three-layer parquet is 8-9mm, and the heat transfer performance is better. , And the surface of a layer of aluminum oxide wear layer, this wear layer is conducive to the rapid diffusion of heat at the surface.
The thickness of solid wood flooring is generally about 2cm. When installing it, the keel must be used. If it is used as a geothermal floor, there is air between the floor and the ground. The thermal conductivity coefficients of air and wood are very low, so that the heat is not easily transmitted to the surface and can cause heat. The waste is caused by uneven surface temperature and obvious temperature differences. And the laminate flooring is pressed at high temperature, and the internal moisture content is very small, so the floor will not be deformed due to moisture loss. Each layer of multi-layer solid wood flooring is intertwined horizontally and horizontally, restraining each other, and there is also a dense anti-deformation groove on the back surface, which decomposes the stress generated on the heated surface, so the deformation is very small.
The solid wood floor has a high moisture content and is easily cracked and deformed when heated at a high temperature for a long time. If you must use ordinary solid wood flooring, you should try to use the back of the film layer floor, because it can prevent moisture and moisture, and can maintain the wood moisture content and the ambient humidity balance.
Relevant experts believe that the choice of a geothermal floor should be based on the specificity of the geothermal heating method; it should be adapted to the repeated transformation of heat and heat and conducive to heat conduction. In the same environment, the solid wood floor has more deformation than the reinforced floor, and the reinforced floor has more layers of wood floor deformation.
In addition, it is also best to meet the following points:
First, the dimensional stability is better
This depends on the substrate density and internal bond strength of the floor. The higher the internal bond strength, the better the ability of the floor to withstand temperature changes and the phenomenon of cracking will not occur. Only the floor of the wood material with relatively dense wood can ensure Long time no cracking or deformation under high temperature.
Second, not afraid of the humid environment
That is, the water absorption thickness expansion rate. The floor used for water-heated floor radiant heating requires a small dimensional change in a high-humidity state and an expansion rate of 2.5% or less. In general, the smaller the expansion rate, the better the moisture resistance of the floor.
Third, formaldehyde emission can not exceed the standard
It is required that the amount of formaldehyde released will not exceed the standard in the condition of prolonged heating. When consumers choose geothermal floor, we must choose the floor with low formaldehyde content as possible, because the higher the temperature, the more formaldehyde emission, in the relatively closed residential room, plus the release of formaldehyde caused by other indoor articles, indoor formaldehyde has It may exceed the standard and cause harm to the human body.
Fourth, heat transfer faster
There are not many brands on the market that can provide heat transfer coefficient. Consumers should pay attention when buying. Products with high general coefficients perform better in terms of heat conduction.
Fifth, not afraid of high temperature
Because the geothermal floor should withstand high temperature heating for a long time, it is required that the decorative layer of the product be stable in performance, and that under the condition of high temperature for a long time, there will be no fading and rough light.
Answer: First, the ground handling before installation should be detailed
The ground must be level within a radius of two meters, and the height difference must not exceed 3mm. The ground must be completely dry. Before laying the floor, a geothermal heating test must be performed. The inlet water temperature should be at least 50°C to ensure that the heating system operates normally. And to keep warm for more than 24 hours to make the ground dry, to ensure that the moisture content meets standards.
Second, the installation process details are the most important, the order of stress
It is best to use a suspension type installation method. The floor is closely attached to the ground through the cushion material, there is no gap between the floor and the surface, and more shrinkage gaps are reserved between the floors. Since the amount of tidal gas released by hydrothermal radiation is large, it is necessary to work hard to prevent moisture.
When paving, you must first clean the floor. Pay attention to clean the corners and ensure that there are enough expansion joints. The second step is to lay a layer of plastic cloth on the ground to cut off the moisture. The plastic sheet should be 10cm above the ground at four corners. The third step is laying floor mats. Be careful to leave expansion joints, overlap at least 5cm at the interface, and must be sealed with tape. Use a skirting board that is thicker than a normal floor and use it separately. The floor can only warm up after 24 hours of installation. In order to facilitate heat conduction, the cushion material should not be too thick.
In addition, the use of special geothermal floor glue; can not be paved; can not play keel, because this will leave air between the gap, the air's low thermal conductivity, is not conducive to heat transfer.
Third, to use special paper floor mats
The floor mat between the floor and the floor can not use the ordinary foam floor mat, must use the geothermal special paper floor mat, because this type of floor mat has fast heat conduction and does not deform. Ordinary foam mats have low thermal conductivity and are exposed to high temperatures for a prolonged period of time, and are prone to harmful gases that endanger the health of users.
Fourth, the surface temperature during construction can not be too high
Whether it is a hydrothermal radiation heating system or a cable heating system, do not produce stoves, electric furnaces, etc. on the ground. If the surface temperature is too high, the aluminum-plastic composite pipeline under the ground may melt.
Because of the special features of the geothermal floor and the complexity of the geothermal system, compared with the ordinary floor, the maintenance and the maintenance of the geothermal floor have their unique features. Special attention should be paid to the heating and moisturizing.
Reply:
First, heating should be gradual when used for the first time
When using geothermal floors, consumers must pay attention to the gradual heating of floors and floors. When installing, the surface temperature should be maintained at about 18°C. Before installation, gradually increase the temperature of the concrete floor by 5°C per day until it reaches the standard of about 18°C. In the first 3 days after the installation is completed, the temperature should be maintained. After 3 days, the temperature can be increased as needed, and the temperature can only be increased by 5°C per day.
The first use of geothermal heating, attention should be slowly warming. When used for the first time, gradually increase the temperature in the first three days of heating: the first day of water temperature is 18°C, the next day is 25°C, the third day is 30°C, and the fourth day can be raised to normal temperature, ie, water temperature 45°C, surface temperature 28 °C ~ 30 °C. Can not warm up too quickly, too fast, the floor may be cracked due to expansion.
When the geothermal heating system is turned on again after a long period of time, it must be heated in strict accordance with the heating procedure as it was for the first time.
Second, the surface temperature can not be too high
It should be noted that with geothermal heating, the surface temperature should not exceed 28°C, and the temperature of the water pipes should not exceed 45°C. If this temperature is exceeded, the service life and life cycle of the floor will be affected. In general families, when the room temperature in winter reaches about 22°C, it is already very comfortable. If the temperature rises normally, it will not affect the use of geothermal floors.
Third, close the geothermal system, pay attention to gradual cooling
With the passage of the seasons, when the weather is warm and indoors no longer requires geothermal heating, attention should be paid to shutting down the geothermal system. There must also be a process of cooling down the floor. The cooling process of the floor must also be gradual, not abruptly reduced, if the cooling rate is too fast, It will also affect the life of the floor.
Four, when the room is too dry, you can consider humidification
In winter, the climate is dry, and geothermal heating is used. If the floor is exposed to high temperatures for a long time, it will be easy to crack. At this time, the owner must humidify the room so as not to crack the floor.
During the renovation, attention should be paid to not punching holes or nails on the ground so as not to leak geothermal pipes, causing the geothermal system to run out of water and the floor foam to be scrapped. In addition, because the surface of the floor is a heat-dissipation surface, the floor should not be fixed or decorated with legless furniture. It is also not suitable to build a platform to avoid affecting the flow of hot air, resulting in poor heating of the room.
Due to the relatively high surface temperature of the floor, it is best not to place glassware and chinaware directly on the ground in winter when using a geothermal heating system, so as to avoid uneven heating, heat expansion and contraction, and rupture of the vessel. .
Geothermal floor has become a fashion decoration in home decoration, but everyone must pay more attention to detail when purchasing and paving, especially in terms of maintenance, the requirements for geothermal floor are higher.
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