More and more people are opting for underfloor heating. It is considered effective and very functional. However, it requires proper connection and selection of components. Underfloor heating pipes are of key importance here.

Check PERT/AL/PERT pipes at the Onninen wholesaler
What types of underfloor heating pipes are there?
Installing underfloor heating requires choosing not only a distributor or radiators, but above all pipes. There are various models available. You can choose polyethylene, or PE. Polyethylene pipes are very durable, resistant to mechanical damage, do not corrode, and do not require replacement even after years of use.
Cross-linked polyethylene is most commonly used, as it is flexible and easy to install, and also retains heat well. You can also opt for aluminum pipes, which are more massive. Usually, not whole pipes are used, but rather inserts reinforcing polyethylene pipes. Another question arises - can other pipes, e.g. brass ones, be used for underfloor heating ? Of course not, because although they retain heat well, they are not flexible.
PERT pipes, which are reinforced and more cross-linked, work much better. Thanks to this, they are more resistant to changing temperatures. You can also use PEX pipes, which consist of high-density polyethylene. They are reinforced through cross-linking. Of course, you can also choose an aluminum insert, which makes the PE RT pipe more resistant to expansion, but also contraction under the influence of heat. Additionally, it is protected against high pressure or bursting under the influence of pressure.
Advantages of plastic pipes
Plastic pipes are really easy to install, resistant to low and high temperatures, but they also do not accumulate scale. They are also resistant to moisture and biological or chemical contamination. In addition, they do not react with water or its compounds. Thanks to their low weight, they are easy to install, but also facilitate the transport of hot water or gas. Good strength parameters and durability of the connection are undoubtedly their advantages. They also do not transfer vibrations, so they work really quietly. The outer coating is smooth. Thanks to this, they are easy to hide. Considering their reliability and price, you can save a lot by choosing them. They are also used for utility water, and not only for underfloor heating.
What is special about the PERT/AL/PERT pipe?
PERT/AL/PERT pipe is a multilayer pipe. It consists of two layers of polyethylene with increased thermal parameters. Thanks to this, it increases the resistance of the installation, which can work at high temperatures. It also has one layer of aluminum. The pipe is butt-welded. It also has two layers of glue, which are used to connect the individual layers. Such pipes can be safely used when the temperature is from minus 95 to 70 degrees Celsius. Their greatest advantages include durability and energy efficiency, as well as high flexibility. Of course, we must mention its tightness to oxygen diffusion. It allows maintaining the best hygiene parameters in the pipes. They are also characterized by low thermal expansion.
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How to choose the length of PERT/AL/PERT pipe?
Let's start with the fact that the screed thickness for underfloor heating should be at least 6.5 cm. When it comes to the thickness of the polystyrene, you should choose one of 15 cm. Knowing more about the screed, you should choose the length of the PERT/AL/PERT pipes so that the underfloor heating is effective. The number of square meters depends on the layout, as well as the distance between the pipes. In places where there may be potentially large heat losses, the pipes are laid more densely, which is why a larger number of them should be used. The general rule is that when installing, 10 to 15 meters of heating pipes are used for 1 m2 of underfloor heating.
In a well-insulated room, a length of 10 meters is enough, while where heat losses occur, a minimum of 15 meters should be used. Also pay attention to the way the pipes are laid. The efficiency of the underfloor heating, the size of the room, but also the potential heat losses are taken into account. The most common spacing is 15 cm, 20 cm and 25 cm. If there are really large heat losses in a given room, then the pipes should be thickened every 10 cm. We also remind you how important the length of the section in the underfloor heating is. Namely, one loop in underfloor heating cannot be longer than 150 meters. In home installations, pipes with a diameter of 16 mm are used on the substrate. The larger ones, i.e. 18 mm, are used in public places.
PERT/AL/PERT pipes in the Onninen wholesaler
If you are at the stage of selecting the necessary corrosion-resistant pipes for underfloor heating, you will find an excellent offer at the Onninen installation wholesaler .
The PERT/AL/PERT ONNLINE 16x2 pipe, 200m roll , is worth mentioning. It ensures work efficiency, thanks to the high working temperature, which is up to 95 degrees. It consists of three layers such as mesh polyethylene, aluminum jacket and protective coating. It is resistant to corrosion. It ensures long and trouble-free operation. Water does not damage its structure.
A good choice may also be the PERT/AL/PERT ONNLINE 16mm x 2.0mm pipe in a casing . It is pre-insulated. It consists of an internal multi-layer pipe, as well as thermal insulation. Additionally, the manufacturer has used a thick protective film. In this way, the insulation is even better protected against both mechanical damage and moisture. It has mechanical resistance to both tearing and damage. It does not move under the influence of stress. It can be used not only in traditional construction, but also in wooden construction. For even greater work efficiency, it has an anti-diffusion barrier.
In addition, an essential element may be the ONNLINE PERT/AL/PERT 20mm x 2.0mm pipe in a 9mm BLUE casing/thermal insulation . This is another great model that stands out for its reliability and has really good technical parameters. It is characterized by a long service life and resistance to mechanical damage. It is also worth paying attention to its assembly, which is very easy. It can be connected with screwed or clamped connectors. It can be safely used in places where there is high pressure. It has a protective film that is resistant to tearing. This model also has protrusions and adheres to concrete screeds or mortars, which makes it easier to make a connection.
Properly installed underfloor heating can bring savings compared to traditional heating solutions. The energy demand of the building, when a heat pump is used, can be met at a lower cost. Thanks to low-temperature installations using an ecological heat source, underfloor heating consumes less energy and at the same time provides thermal comfort to users. The selection of high-quality pipes is important, which do not need to be laid in large quantities thanks to their flexibility and lower heat losses. It is worth choosing the offer of the manufacturer Onnline .