You must know these things about floor heating installation!

Whether it is north or south, it has become a trend to install floor heating as a heating method. If you want the floor heating to run stably in 

the later stage, installation is as important as material selection.Understanding these installation details can more effectively help users identify 

the pros and cons of the construction process.

What are the requirements for floor heating pipes?

Good floor heating pipes need to have long-term temperature resistance, pressure resistance, high reliability, and high flexibility. According to 

the design standards, floor heating generally uses hot water at 40-60°C, and the design pressure is generally 0.4-0.6MPa. Due to the different 

temperatures and pressures of pipes in different seasons, the requirements for floor heating pipes are also clearly specified. The purpose is to 

flexibly respond to different environments and ensure the normal and safe operation of the system.

Floor heating installation is a hidden project, especially the service life of the pipe is required to be synchronized with the house, and the 

stability of the pipe material is very high.

The PE-Xb high temperature resistant cross-linked floor heating pipe has good heat resistance, the normal working temperature can reach 95 ℃, and it 

can withstand the test of 8000 hours under the environment of 110 ℃. Good pressure resistance, working pressure 12.5bar and 20bar at room temperature.

What is the appropriate distance between the floor heating pipes?

If the distance between the floor heating pipes is too small, it will increase the difficulty of installation, and if the distance is too large, 

it cannot meet the heating requirements. The standard requires that the minimum distance between pipes is 100mm and the maximum should not exceed 

300mm. According to the different needs of users and the consideration of room layout, the design of pipe spacing will not completely adopt a 

fixed value, but will choose and design within the range specified by the standard.

For water heating, as the length of the pipe increases, the water resistance in the pipe will increase, which will affect the final heating effect.

Moreover, the length of pipes for a single loop of water and floor heating is generally not more than 120m. If a single loop cannot meet the design 

requirements, a single room with multiple loops will be considered to avoid affecting the heating effect. Therefore, the pipe spacing needs to be 

reasonably planned and designed. For spaces with high floor heights such as single-family villas, since the demand for heating space will increase 

accordingly, the spacing of floor heating pipes can be properly laid and denser.

Most of the floor heating installations are concealed projects. It is necessary to strictly abide by the standard construction and make it in one step 

to avoid unnecessary troubles caused by rectification due to details. The laying of the coils should pay attention to the distribution interval to 

ensure uniform heat dissipation, and the floor heating pipes should not be folded at the corners, otherwise there may be blockages or leaks. In order 

to check the air tightness of the system at any time, after the pipeline is installed, it should be filled with water and pressure tested, and the 

pressure should be maintained for a long time.

How to choose a floor heating sub-catchment?

The sub-catchment is equivalent to the heart of the floor heating system and is used to connect the water supply, return water and water collection 

devices of various heating pipes. Reasonable distribution to ensure the normal operation of the floor heating system.

In order to prevent corrosion, the sub-catchment is generally made of corrosion-resistant pure copper or synthetic materials. Commonly used materials 

are copper, stainless steel, nickel-plated copper, nickel-plated alloys, and high-temperature plastics. The difference between copper water separator 

and stainless steel water separator is that the diameter of the main pipe is different, and the price of raw materials is also different. The one-piece 

sub-catchment made of brass integrally forged, and nickel-plated with hot-extruded copper material, has strong corrosion resistance and pressure 

resistance. A good stainless steel sub-catchment is cost-effective, and can also resist corrosion, acid, alkali and wear.

When installing the sub-water collector, pay attention to the part where the sub-water collector and the pipeline are connected, and the outside of 

the pipeline should be covered with a thermal insulation pipe, which can play a role of heat insulation and prevent the local temperature from being 

too high.

In order to make home heating more worry-free and more assured, every detail of the installation of floor heating cannot be ignored, and the construction 

must be carried out in strict accordance with the specifications.