More and more people choose to install a home heating system to ensure that the winter can be warm as spring. After a friend's recommendation, after listening to the advice of a qualified floor heating expert, the 24KW gas boiler and the Paulee anti-permeation PERT floor heating pipe were completed six days later. The following is a detailed report of the project installation site:
First, the importance of plumbing pipe
Warm spot photo
Second bedroom
See here or some users will be puzzled, what red circle around what? I consulted a senior expert, Ms. Zhang, who said that red is the pipe that transmits heat conduction, and the choice of pipe is the most important task of floor heating. There are several materials for the pipes that are used for floor heating. Kinds of common PE-X, PE-RT, PP-R, PP-B, aluminum plastic pipe and so on. But our comfort 100 is generally the PE-RT tube of choice. Because PERT tubes have the following five advantages compared to other tubes:
1 can be hot melt connection, just to meet the requirements of the joint does not allow the floor heating pipe, good repairability;
2. Simple processing technology, reliable quality;
3. Good low temperature resistance and flexibility, small bending radius, no need of preheating when the pipeline is bent, and it is very convenient even under the condition of low temperature in winter;
4. The heat dissipation performance is good, the heat transfer coefficient is similar to PEX, much higher than PB and PP-R;
5. The price of PE-RT pipe is lower than that of cross-linked aluminum-plastic composite pipe XPAP. It is the best heating pipe material with the best overall performance and price ratio.
Second, the wire mesh and expansion joints are also small details to verify whether the floor heating is qualified.
Laying steel mesh
Living room and dining room
"Why do we need to install steel mesh on the pipe? What role does the steel mesh play in the floor heating?" I asked, Ms. Zhang explained: The steel wire mesh seems to be an optional part, but it is actually very useful. There are also five aspects.
1. Fixed pipe: laying steel wire mesh on the surface of heat-insulating layer with nylon tie to bring the pipe fixed, which is characterized by fast construction speed, accurate positioning, and good overall effect of pipe installation.
2. Reinforce the local load-bearing capacity of the ground: In rooms with large ground loads, such as processing workshops and garages, the use of wire mesh panels for floor heating can increase the overall strength of the ground structure layer and avoid cracking and collapse of the ground.
3. Accelerate the cooling rate: Because the thermal conductivity of iron is relatively strong, the ground heat is evenly distributed.
4. To prevent cracking on the ground: The steel wire mesh must be placed in the middle of the concrete above the pipe. (The reason for the cracking of the ground cracking tile is that no wire mesh is used, and the second is that the ground concrete is too thin to be poured, and the concrete must be poured over 4-5cm).
5. Application under special circumstances:
A. The height of the room is not enough. In order to reduce the height of the ground construction and reduce the thickness of the thermal insulation layer, the steel pipe is used to directly fix the pipe.
B. Partially foamed cement is unqualified and cannot be fixed. Pipes are fixed with wire mesh.
C, foaming cement construction in the bathroom can not use wire staples to fix the pipe, because the wire staples may damage the waterproof layer, so the wire mesh should be used to fix the pipe.
Expansion joint next to the wall
I noticed that there was a certain distance between the floor heating and the wall, and that the distance was very even around the entire wall. After the inquiry, I learned that this is the expansion joint, because the length of my living room is more than 6 meters. The relevant provisions, but where the area of ​​floor heating installations exceeds 6 meters in length, there must be expansion joints between the floor and the wall, and use a skirting board that is thicker than the average floorboard. In order to prevent the use of thermal cracks due to thermal expansion and contraction caused by heating cracks affect the heating effect.
Third, to warm leveling - the final step
Leveling
The first floor of small floor leveling
Ground warm second level cement mortar leveling
Leveling completed
Leveling is the final step in the entire family heating project, and it is the time to test the master craftsmanship. The horizontal line of the entire house must be at a height. Generally, the heating works are all cemented with cement mortar. In this way, the problem of uneven heating will not occur when the house is centrally heated. So when consumers test whether their own floor heating is qualified, they may wish to consult Ms. Zhang’s suggestions as follows:
1, floor heating leveling requirements and material ratio:
Cement: Dasha: Pebble: 1:2:3 (pebble size 0.5-1.5 cm)
2, leveling thickness recommendations: tiled floor heating leveling cover the floor to warm the tube 1 cm, shop floor heating leveling thickness, with the highest horizontal line, reflective film above 3-5 cm.
3, floor heating material thickness: insulation board is 2 cm, floor heating pipe Φ16 a total of 3.5 cm This is the total thickness of floor heating materials, plus concrete and tile wooden floor about 8-10 cm, the exact thickness of the decoration workers to master.
Home heating is currently the most comfortable heating method and a symbol of modern life quality. Floor heating follows the ideal concept of “warm foot and cool roof†promoted by traditional Chinese medicine. The indoor temperature distribution gradually decreases from the bottom up. The heating process mainly uses radiant heat to transfer, the indoor temperature distribution is reasonable, and there is little invalid heat loss, thus avoiding indoor The dust and volatile odor caused by air convection overcome the problems caused by traditional radiator heating such as indoor heat, smell, skin water loss, and dry mouth.
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