Geothermal floor concept:
The geothermal floor is simply a floor suitable for geothermal. Specifically, it refers to the (wood) floor that guarantees the heating effect of geothermal use, does not deform during use, and conforms to the national standard. It does not only refer to any type of floor, it includes laminate flooring, solid wood flooring, multi-layer solid wood flooring, bamboo flooring, but it does not mean that certain types of flooring can be used as geothermal.
What floor is suitable for geothermal heating? Nanjing geothermal floor standard:
In general, the quality of imported flooring has reached the European Enpr13329 standard, and the quality of domestic flooring has reached the national GB/T1802-2000 standard, which can meet the technical requirements for geothermal heating floor installation.
I may have read these general standards. Some readers still don't know what kind of products to choose. Nowadays, there are many types of flooring on the market, such as solid wood flooring and composite flooring. Generally speaking, the following points must be met:
First, the dimensional stability is better
This depends on the substrate density and internal bonding strength of the floor. The higher the internal bonding strength, the better the ability of the floor to withstand temperature changes, and the phenomenon that cracking does not occur. Only the substrate is a relatively dense wood floor. It does not crack or deform at high temperatures for a long time.
Second, not afraid of the humid environment
That is, the water absorption thickness expansion rate. Floors used for hydrothermal radiant heating require small dimensional changes in high humidity conditions with an expansion ratio of 2.5% or less. In general, the smaller the expansion ratio, the better the moisture resistance of the floor.
Third, the amount of formaldehyde emission can not exceed the standard
It is required that the amount of formaldehyde released will not exceed the standard under the condition of long-time heating. When consumers choose geothermal floor, they must choose the floor with low formaldehyde content as much as possible. Because the higher the temperature, the more formaldehyde is released, the formaldehyde is released in the relatively closed living room, and other indoor items. May exceed the standard, causing harm to the human body.
Fourth, heat transfer is fast
At present, there are not many brands that can provide heat transfer coefficient on the market, and consumers should pay attention when purchasing. Products with a high general coefficient perform better in terms of heat conduction.
Five, not afraid of high temperature
Since the geothermal floor is subjected to high temperature heating for a long time, the performance of the decorative layer of the product is required to be stable, and the phenomenon of fading and roughening does not occur under the condition of long time and high temperature.
How to lay the geothermal floor?
First, the ground handling before installation should be meticulous
The ground must be horizontal within a radius of two meters, and the height difference must not exceed 3mm. The ground should be completely dry. Before laying the floor, geothermal heating test must be carried out. The inlet water temperature should be at least 50 °C to ensure the heating system is running normally. And to keep warm for more than 24 hours, so that the ground is dry, to ensure that the water content meets the standard.
Second, the installation process details are the most important, the order is particular
It is best to use a suspension installation method. The floor material is close to the ground through the cushion material. There is no gap between the floor and the ground surface, and a larger shrinkage gap is reserved between the floors. Since the amount of tidal gas released by hydrothermal radiant heating is large, it is necessary to work hard to prevent moisture.
When paving, first clean the ground. Be careful to clean the corners straight to ensure that there are enough expansion joints. The second step is to lay a layer of plastic cloth on the ground to isolate the moisture, so that the plastic sheet is 10cm above the ground at the four corners. The third step is to lay the floor mat. Be careful to leave the expansion joints, the joints must overlap at least 5cm, and must be sealed with tape. Use a skirting board that is thicker than a normal floor and requires independent construction. The floor can only be warmed up after 24 hours of installation. In order to facilitate heat conduction, the cushion material should not be too thick.
In addition, it is necessary to use special glue for geothermal floor; it is not allowed to lay rubber pad; nor can it be used for keel, because air will remain between the gaps, and the thermal conductivity of air is low, which is not conducive to heat transfer.
Third, to use special paper mats
The floor mat between the floor and the floor should not be used with ordinary foam mats. It is necessary to use geothermal special paper mats because the mats conduct heat quickly and are not deformed. Ordinary foam mats are slow in heat conduction, and are exposed to high temperature for a long time, which is likely to generate harmful gases and endanger the health of users.
Fourth, the surface temperature during construction should not be too high
Regardless of whether it is hydrothermal radiant heating or cable heating system, do not use stoves or electric furnaces on the ground. Because the surface temperature is too high, the aluminum-plastic composite pipe under the ground may melt.
Due to the special function of the geothermal floor and the complexity of the geothermal system, the maintenance and maintenance of the geothermal floor has its own unique features compared with ordinary flooring, and special attention should be paid to heating and moisturizing.
How to maintain the geothermal floor?
First, the heating should be step by step when using for the first time.
When using geothermal floor, consumers must pay attention to the floor and floor heating step by step. When installing, the surface temperature should be kept at around 18 °C. Before installation, the cement floor should be gradually heated up, increasing by 5 °C every day until it reaches the standard of about 18 °C. In the first 3 days after the installation is completed, this temperature should be maintained. After 3 days, the temperature can be raised as needed, and the temperature can only be raised by 5 °C per day.
The first time you use geothermal heating, be careful to heat up slowly. When used for the first time, the first three days of heating should be gradually warmed up: the first day water temperature 18 ° C, the next day 25 ° C, the third day 30 ° C, the fourth day can be raised to normal temperature, that is, water temperature 45 ° C, surface temperature 28 °C ~ 30 °C. Can not heat up too fast, too fast, the floor may be cracked and twisted due to expansion.
When the geothermal heating system is activated again after a long time, it should be heated as strictly as 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 water pipe temperature should not exceed 45 ° C. If this temperature is exceeded, it will affect the service life and service life of the floor. The average family, when the room temperature reaches 22 °C in winter, is already very comfortable. If the temperature rises normally, it will not affect the use of geothermal floor.
Third, close the geothermal system, pay attention to the gradual cooling
As the seasons go through, when the weather is warm and the indoor heating system is no longer needed, it should be noted that there is also a process to shut down the geothermal system. The cooling process of the floor should be gradual and not dip. If the cooling rate is too fast, It also affects the life of the floor.
Fourth, when the room is too dry, you can consider humidification
The dry climate in winter, coupled with the use of geothermal heating, the floor is prone to cracking when it is exposed to high temperatures for a long time. At this time, it is necessary for the owner to humidify the room to avoid dry deformation of the floor.
When decorating, be careful not to punch holes and nails on the ground to avoid leaking the geothermal pipeline, causing the geothermal system to run water and the floor to be scrapped. In addition, since the surface of the floor is a heat dissipating surface, as far as possible, no fixed decorative parts or furniture without legs should be placed on the floor, and it is not suitable to add a platform to avoid affecting the flow of hot air, resulting in poor heating effect in the room.
Because the surface temperature of the floor is relatively high, it is better not to place the glassware and porcelain containing water directly on the ground in the winter. In order to avoid uneven heating, thermal expansion and contraction, the vessel is broken, and the water in the home is "Golden Mountain". .
Geothermal flooring has become a fashion accessory in home decoration, but everyone must pay more attention to details when purchasing and paving, especially in terms of maintenance, the requirements for geothermal flooring are higher.
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