The first category: wet circulation system.
The circulating system consists of heat sources such as gas wall-hung boilers, floor heating pipes and control systems.
The advantages of wet circulation system are: large installation and low cost. The system is stable.
The disadvantage of wet circulation system is that it will occupy 5-7 cm or even higher floor, because it needs to backfill 3-5 cm of pisolite layer. At the same time, the temperature rises slowly, and it takes more than 1 hour for the first opening, and 4 hours for the room to be completely heated. And backfilling will increase the bearing capacity of the floor.
The second category: dry circulation system.
The dry circulation system also includes the second generation dry circulation system and the third generation circulation system, also known as thin floor heating.
Its advantages are convenient and simple installation, trench protection of floor heating pipe, no need to backfill, saving floor height of about 3cm and reducing floor bearing capacity.
Its disadvantage is high cost.
The third category: heating cable electric floor heating.
Heating cable electric floor heating is to heat the floor or tile by electrifying the metal cable and finally heat the air.
Its advantages are: the temperature rises quickly, that is, it is hot when it is turned on. As long as the cable quality and design are excellent, there is almost no after-sales service.
Its disadvantages are: high energy consumption, more than 50% higher than that in the later stage of water heating, and it is not suitable for large-scale installation because of capacitance problems.
The fourth category: electric heating film floor heating.
Electrothermal film is a heating element made of polymer material, which is widely used in engineering projects.
Its advantages are linear heating of heating cable, planar heating of electric heating film, and more uniform heating. And if the quality and design of the electric heating film are excellent, there will be no after-sales demand in the later period.
Its disadvantages are: high energy consumption, more than 50% higher than that of water heating, and it is not suitable for large-scale installation. If necessary, increase production capacity.
The fifth category: carbon crystal and carbon fiber electric floor heating.
Floor heating is a popular concept product in recent years. Compared with electrothermal film and heating cable, they still lack corresponding national or industrial standards, so their quality, safety and attenuation should be questioned.
Extended data:
Circulating system installation steps:
1. Install the water collector.
2. Connect the supervisor
3, laying insulation layer, boundary expansion zone.
4, laying reflective aluminum foil layer
5, laying coil
6. Connect the oil-water separator
7. Buried pipes shall be laid according to the construction drawing.
8, set the door expansion joint
9, intermediate acceptance (hydrostatic test)
10, concrete backfill construction of pisolite or melon seeds
1 1, completion acceptance (secondary hydrostatic test)
12. Final installation of special thermostat
Circulating system installation requirements:
1, and the indoor clear height is not less than 2.67m ..
2. The outlet temperature of heat source is normal.
3. The ground level off, without sundry.
4. There is water and electricity on the construction site and a room for storing geothermal materials.
5. The floor heating construction should avoid being carried out simultaneously with other decoration, and technical disclosure should be made with the decoration party in advance.
References:
Baidu encyclopedia-circulatory system