The installation of underfloor heating pipes is a systematic and professional task that cannot be easily done by just one person. It is related to the comfort, stability, and potential risks of water leakage during the later use of the underfloor heating system.

Let's take a look at the correct process and techniques for laying underfloor heating pipes together!

1、 Preparation before laying underfloor heating pipes: Level the ground and clean it up

Leveling the ground is a prerequisite for laying underfloor heating. If the ground is uneven, it will not only affect the insulation of underfloor heating, but also pose a risk of scratching the underfloor heating pipes if there are sharp objects. To level the ground, it is necessary to first remove the unevenness on the ground. The height difference of the ground should be within ± 10mm, and the debris on the ground should be cleaned to ensure a flat surface. The walls and column bases should be at a 90 degree angle to the ground.

2、 Preparation 2 before laying underfloor heating pipes: laying insulation layer

Lay insulation board and reflective film on the already treated flat ground. When laying extruded polystyrene board on the leveling layer, it should be laid on a flat and clean structural surface. The extruded polystyrene board should be cut neatly, and the laying gap should not exceed 5mm. The extruded polystyrene board can be smoothly bonded with tape. Then, aluminum foil paper or a layer of composite aluminum coated polyester film with coordinate grid lines should be laid on the insulation layer of the underfloor heating pipe, and the insulation layer should be laid flat. After laying the insulation board, lay the reflective film. The protective layer laid with aluminum foil reflective film can effectively prevent heat loss downwards.

3、 Preparation 3 before laying underfloor heating pipes: installation and fixation of water dividers

First, proceed with the main pipeline. After the indoor main pipeline is connected to the outdoor main pipeline, apply pressure and then proceed with the installation and fixation of the water separator. Valves, filters, and drain pipes should be installed along the water flow direction on the water supply connection pipeline before the water separator. Two valves are installed before the water separator, mainly for cleaning the filter and closing when replacing or repairing the heat metering equipment. Filters are installed to prevent impurities from clogging the flow meter and heating tube. The valves and filters in front of the heat metering device can also be replaced with filter ball valves.

On the return water connection pipe after the collector, a drainage pipe needs to be installed, and a balance valve or other switchable regulating valve should be added. All accessories should be made of corrosion-resistant materials.

4、 Laying underfloor heating pipe coils

Lay the underfloor heating coils according to the construction drawings, in accordance with the planned circuit, with pipe spacing in accordance with the plan. The pipes near the exterior walls, windows, and floors with high heat consumption areas should be densified and fixed to the composite insulation board and reflective film with plastic clips.

5、 Work after laying the underfloor heating pipe: backfilling with pea gravel concrete and leveling the ground

Finding flat ground is the most important process for testing the skills of equipment masters. The horizontal line of the entire room must be at the same height, and it is best to use pea gravel concrete to level the floor for the underfloor heating leveling project. After the concrete is leveled, the height difference on the floor should not exceed 5mm.

The result of laying underfloor heating pipes is largely determined by the quality of the pipes, so when selecting underfloor heating pipes, it is important to choose a reputable and professional underfloor heating pipeline product company.

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