Floor heating is a heating system used for heating in winter. The types of floor heating are divided into water floor heating and electric floor heating. Both electric floor heating and water floor heating belong to low-temperature radiant heating, and they are both comfortable heating methods. The difference is that Their heat source and system design vary slightly. Next, I will introduce the installation specifications of water floor heating and electric floor heating, and take you to understand the installation flow chart of home improvement floor heating.
1 The principle of floor heating
Floor heating uses the entire ground as a radiator, through the heat medium in the floor radiant layer, uniformly heats the entire ground, and conducts conduction from bottom to top using the ground’s own heat storage and upward heat radiation , to achieve the purpose of heating. At present, the common types of floor heating on the market are water floor heating and electric floor heating. Let’s take a look at the principles of water floor heating and electric floor heating.
Principle of water floor heating
Water floor heating uses hot water with a temperature not higher than 60°C as heat A heating method in which the medium circulates in the heating pipe buried in the filling layer below the ground, heats the entire floor, and supplies heat to the room by means of radiation and convection heat transfer through the ground.
The principle of electric floor heating
Electric floor heating uses a heating cable as a heating element, which is used for laying in various Under the floor, ceramic tile, marble and other ground materials, it is equipped with an intelligent thermostat system to form a concealed floor heating system that is comfortable and environmentally friendly, efficient and energy-saving, does not require maintenance, can be used independently of each room, and has a long service life.
2 Which is better, water floor heating or electric floor heating? Water floor heating VS. Electric floor heating Advantages Comfortable and healthy, strong health care; environmental protection and energy saving, good stability; long service life, High safety factor, comfortable, hygienic, health care; adjust indoor temperature at will; low occupancy; low temperature operation, safe and reliable High operation cost in the later stage of floor height; there is certain radiation; the current electric floor heating market is relatively chaotic System installation Wet installation is difficult; dry installation is simple and easy to install Preheating for more than 3 hours; soaking for more than 4 hours; temperature difference between hot and cold electric power is 10℃, preheating for 2~3 hours; soaking for about 4 hours; temperature difference between hot and cold points is 10℃ High energy consumption, if combined with the ground source heat pump system, the operating cost is low and the power consumption is high, and the actual electric heat conversion rate is difficult to be higher than 70% The system life of the underground coil is 50 years; 10~15 years for the boiler; 10~15 years for the whole boiler; 30~50 years for the underground heating cable; the outer sheath of the cable will be aged within 10 years; Precautions
Floor heating is a systematic project. If the installation is not good, once there is a problem, it will be very troublesome to maintain, and the cost of later use will also increase, so choose good qualifications and good service. Floor heating service providers are very important.
Design and construction drawings, all incoming materials, and technical documents of products should be complete, the signs should be clear, the appearance inspection should be qualified, and relevant tests should be carried out by sampling if necessary; The construction site has water supply or power supply conditions and temporary facilities for storing materials.
Before installing the floor heating system, it should be ensured that the construction of the water and electrical pipes on the construction site is completed. The kitchen and toilet have passed the closed water test and acceptance; the walls have been painted, and the exterior windows and doors have been installed.
The ground in the construction area should be flat and clean, and the ambient temperature for construction should not be lower than 5°C; cross-construction operations with other types of work should be avoided. The ground holes should be made before the floor heating pipes are laid to avoid any drilling operations in the future.
The heating tube should be packed in shading for transportation. During transportation, handling and handling, it should be handled with care. Clean, and the heat source should be kept above 1m to avoid damage due to ambient temperature and physical pressure.
4 Water floor heating installation flow chart
Leveling the floor
Installing the manifold
Connecting the main pipe
Laying the insulation Layer, Boundary Expansion Belt
Laying Reflective Aluminum Foil Layer
Laying Coils
Connecting Water Dividers
Buried Pipes
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Setting up expansion joints through the door
Primary hydraulic test
Concrete filling layer construction
Secondary hydraulic test
Special thermostat installation
5 Flow chart of electric floor heating installation
Detecting cables
Leveling the floor
Laying thermal insulation layers
Laying reflective films
Lay the wire mesh
Lay the heating cable
Check the cable again
Install the thermostat
Power-on check
Filled Concrete
Final Test Acceptance
6 Floor Heating Installation Acceptance
Material Acceptance
Inspection If there are any errors or omissions in the floor heating distribution area in the drawings, the materials can be checked and accepted with reference to the list.
Construction acceptance
This acceptance is for the pre-construction (pipe laying, sub-catchment installation) etc.), check the corner insulation measures, and measure whether the coil spacing is the same as the drawing (usually 20 or 15cm). After the floor heating is installed, a water pressure test is carried out.
System acceptance
Various parameters will be recorded during the supervision of system acceptance (ie, debugging) for after-sales service . This commissioning includes line connection, whether the connection of each pipe component is tight and sealed, and whether the layout is consistent with the drawing.
7 Floor Heating Maintenance
Heating should be done step by step during first use
Heating should be done gradually during first use : When using for the first time, the temperature should be gradually increased in the first three days of heating: the water temperature is 18°C on the first day, 25°C on the second day, 30°C on the third day, and can be raised to normal temperature on the fourth day, otherwise the floor may be caused by expansion. Cracking and twisting phenomenon. When the geothermal heating system is activated again after a long time, the heating program should also be strictly followed.
The surface temperature should not be too high
The surface temperature should not exceed 28℃, and the water pipe temperature should not exceed 45 ℃, if it exceeds this temperature, it will affect the service life and service cycle of the floor. For ordinary families, when the room temperature reaches about 22°C in winter, it is already very comfortable.
Turn off the geothermal system, pay attention to cooling gradually
When the weather warms up, the indoor no longer needs geothermal When the system is heating, it should be noted that there is also a process for turning off the geothermal system. The cooling process of the floor should also be gradual and not drop abruptly. If the cooling speed is too fast, it will also affect the service life of the floor.
Consider humidification when it is too dry
In winter, the floor is heated and the floor is in a high temperature state for a long time. The room must be humidified. Do not drill holes or nails on the ground during decoration. Try not to make fixed decorative parts or place furniture without legs on the floor, and it is not suitable to build a platform to avoid affecting the flow of hot air, and do not place glassware containing water directly on the ground. and porcelain.
8 Floor Heating Q&A
Q: Is electric floor heating more environmentally friendly and more economical than water floor heating?
A: Most of our country is thermal power generation. The chemical energy of coal-fired is converted into electrical energy for many times. Electric heating actually consumes more energy and consumes more.
Q: What is the price of floor heating?
A: The price of floor heating is determined by the selection of materials for the underground hidden structure, the control system and the configuration of the heat source. Different options have different prices.
Q: How to choose floor heating products?
A: First, choose an experienced professional floor heating company, and secondly choose a system with excellent performance and high cost performance.
Q: What is the service life of the floor heating system?
A: The service life of the floor heating system is mainly the service life of the buried pipe. Therefore, the selection of the floor heating pipe is the key to the service life.
Q: Is air-conditioning heating better or floor heating better?
A: The air conditioner itself is deficient in heating, which makes people feel dry. Compared with the heating effect, the floor is warm and comfortable.
Q: What stage of construction is suitable for floor heating?
A: Floor heating can be carried out after all the water and electricity renovation processes are completed, or it can be combined with water decoration and strong and weak electricity system renovation.
