Underfloor heating is the short name for "low-temperature floor radiant heating system". It refers to laying special pipes for underfloor heating under the floor or tiles according to certain regulations to achieve the purpose of heating the room. In the near future, underfloor heating will become the main heating method. Low-temperature floor radiation heating is an ideal heating method. The advantages and disadvantages of low-temperature floor radiation heating are as follows: Low-temperature floor radiation heating lays polyethylene pipes (PE-RT pipe, PEX pipe, PB pipe) under the indoor ground (such as cement ground, tile ground, wooden board ground). It uses low-temperature hot water as heat medium, which is buried in the floor. The hot water inside the cross-linked polyethylene pipe heats the concrete and floor to a certain temperature through a special bidirectional circulation method, then radiates heat evenly to the room by the floor. This new type of heating principle creates an ideal indoor thermal microclimate with the effect of natural convection caused by the difference in the density of cold and hot air, making the indoor environment reach the most comfortable state for human sensory perception. The low-temperature floor radiation heating system is an energy-saving heating system that regulates the thermal microclimate of the room.
1. Even heat dissipation, small temperature difference, comfortable and healthy
According to the human body's heating needs, the ideal indoor temperature should be "warm feet and cool top" advocated by traditional Chinese medicine. Modern medicine also proves that the capillaries in the feet are less, and the blood circulation is not as good as other parts of the body, especially when the foot temperature is low, the whole body feels cold, and the blood pressure will rise accordingly if this continues for a long time, and other diseases may occur.
In the traditional heating mode, because the hot air rises, the temperature at the ceiling of the room is high, and the temperature near the floor is low. This kind of temperature distribution from high to low is contrary to our requirements for thermal comfort, causing a feeling of dry head, cold legs and feet. Besides, the traditional heating methods such as air conditioners and radiators are mainly point heat sources, where the temperature near the heat source is higher, and the further away from the heat source, the lower the temperature. The temperature distribution within the room is uneven horizontally, affecting comfort.
The underfloor heating system adopts the entire floor surface uniform heat radiation as the heat dissipation system. The heating mission is undertaken by far-infrared radiation. The heat radiates upward from the bottom surface to heat the indoor air. The bottom surface temperature is higher than the breathing line temperature, giving people a warm-footed and cool-headed comfortable feeling. Meanwhile, the temperature difference between various parts of the room is extremely small, and the temperature distribution within the room is even. In addition, since the surface temperature of the radiation is lower than that of conventional radiators, less water evaporation occurs, overcoming the discomfort caused by the traditional radiator heating method such as indoor dryness, strange smell, skin dehydration, dry mouth and tongue, etc., making the indoor environment like spring, thus forming a truly human-compliant heat environment (up to now, I haven't lived in underfloor heating for a long time, so I don't dare to comment lightly), improving blood circulation, promoting metabolism, inhibiting cardiovascular diseases; especially suitable for the elderly and children, and has preventive and curative effects on arthritis and cold legs.
Temperature distribution of different heating methods
2. Indoor air is cleaner
Using radiators for heating, the temperature of the radiator is better, generally above 70℃, and when the temperature reaches 80℃, dust periphery (carbonized dust) will be generated, often filling the wall above the radiator with dusty stains, while increasing the flow of indoor air, making the air dirty. In comparison, low-temperature floor radiation heating can completely eliminate dust periphery and the convection of dirty air, providing a fresh, warm, and healthy environment (when I looked at the radiator, the salesperson of the radiator told me that underfloor heating would make the dust on the ground fly up, and when people sit down, their nostrils are directly facing the dust, making people become unwilling vacuum cleaners!!! However, I am not sure if it is true, and this is the most confusing point?? Is there any expert interpretation?).
3. High efficiency and energy saving
Due to the large radiation area of underfloor heating, the required water supply temperature is relatively low, only 40-50℃. If a design parameter of 16℃ is selected, a heating effect of 20℃ can be achieved, which is an efficient and energy-saving heating system. In addition, the floor heating system can improve the heating effect influenced by the loss of some heat due to poor window sealing of the traditionally placed radiators under the windows. Compared with electric heating, water heating is more economical and energy-saving.
4. Reduce noise
During use, the underfloor heating system is silent, providing a quieter and more comfortable living environment compared to using air conditioners and radiators for heating.
5. Fully increase the utilization rate of indoor space
Compared with radiator heating, underfloor heating eliminates radiators and their branch pipes, increases usable area, facilitates decoration and furniture arrangement.
6. Long service life
Low-temperature floor heating embeds plastic pipes into the modules or concrete layers below the floor. If there is no human damage, the service life is more than 50 years, does not corrode, does not scale, greatly reduces the troubles caused by leaks and repairs of radiators to residents, and saves repair costs.
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The advantage of underfloor heating is that, under the same heating conditions, the indoor temperature with underfloor heating is 3~5 degrees higher than that with radiators installed (this statement is rather one-sided, whether it is higher or not depends on the water temperature in the underfloor heating pipes), more suitable for large households and houses with higher space; saves space (personal opinion: radiators overall occupy less space because underfloor heating lifts the entire floor level, while radiators are just a few heat dissipation panels), as well as radiator packaging.
Disadvantages: must be installed by professional companies, otherwise it is difficult to ensure the quality of the pipes (radiators are also installed by professional companies, personally think this is empty talk), once leakage occurs (radiators also have pipes under the floor, why this is only considered a disadvantage of underfloor heating), not only affects the downstairs, but also requires the floor to be dismantled and relaid.
Related theme articles:
Underfloor heating, such as cement floors, tile floors, wooden floors
What kind of floor is used for underfloor heating //www.ruihuajn.com
This statement, of course, has a lot to do with your usage time.