What should you consider when choosing pipes for underfloor heating? Pert/al/pert pipe

Added: Monday, 10/2/2023


More and more people are choosing 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.

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Check out PERT/AL/PERT pipes at the Onninen wholesaler

What types of underfloor heating pipes are there?

Installing underfloor heating requires selecting not only the manifold or radiators, but above all, the pipes. Various types of models are available. You can choose polyethylene, i.e. PE. Polyethylene pipes are very durable, resistant to mechanical damage, do not corrode, and do not require replacement even after years of operation.

PERT/AL/PERT ONNLINE pipe 16x2 coil 200m The most commonly used is cross-linked polyethylene, which is flexible and easy to install, and also retains heat well. You can also choose aluminum pipes, which are more massive. Usually, whole pipes are not used, but inserts reinforcing polyethylene pipes. There is also a question - 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 strengthened by cross-linking. Of course, you can also choose an aluminum insert, which makes the PE pipe more resistant to expansion, but also to contraction under the influence of heat. Additionally, it is protected against high pressure or bursting under 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 and chemical contamination. Moreover, 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 transmit vibrations, so they work really quietly. The outer shell is smooth. This makes them easy to hide. Considering their reliability and price, you can save a lot by choosing them. They are also used for domestic water, and not only for underfloor heating.

What makes the PERT/AL/PERT pipe stand out?

The PERT/AL/PERT pipe is a multi-layer pipe. It consists of two layers of polyethylene with improved thermal parameters. This increases the resistance of the installation, which can operate at high temperatures. It also has one layer of aluminum. The pipe is butt welded. It also has two layers of glue that are used to connect individual layers. Such pipes can be safely used when the temperature ranges 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 you to maintain the best hygiene parameters in pipes. They are characterized by low thermal expansion.

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How to choose the length of the PERT/AL/PERT pipe?

PERT/AL/PERT ONNLINE pipe 16mm x 2.0mm in lagging Let's start with the fact that the thickness of the screed for underfloor heating should be at least 6.5 cm. When it comes to the thickness of Styrofoam, you should choose 15 cm. Now that you know more about the screed, you should select the length of the PERT/AL/PERT pipes to make the flooring effective. Well, the number of square meters depends on the system and the distance between the pipes. In places where potentially large heat losses may occur, the pipes are laid more densely, so a larger number of them should be used. A general rule of thumb is that when installing, 10 to 15 meters of heating pipes are used per 1 m2 of underfloor heating.

In a well-insulated room, a length of 10 meters is sufficient, but where there are heat losses, a minimum length of 15 meters should be used. Also pay attention to the way the pipes are laid. The efficiency of underfloor heating, the size of the room, but also potential heat losses are taken into account. The most frequently used spacing is 15 cm, 20 cm and 25 cm. If there are really large heat losses in a given room, the pipes should be thickened every 10 cm. We also remind you how important the length of the section is in underfloor heating. Well, one loop in underfloor heating cannot be longer than 150 meters. In home installations, pipes with a diameter of 16 mm are used for subfloors. 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 choosing the necessary corrosion-resistant pipes for underfloor heating, you will find an excellent offer at the Onninen installation wholesaler .

Noteworthy is the PERT/AL/PERT ONNLINE pipe 16x2 coil 200 m . It ensures work efficiency thanks to the high operating temperature of up to 95 degrees. It consists of three layers such as net polyethylene, aluminum jacket and protective coating. It is resistant to corrosion. Ensures long and trouble-free operation. Water does not damage its structure.

A PERT/AL/PERT ONNLINE 16mm x 2.0mm coated pipe may also be a good choice. It is pre-insulated. It consists of an internal multi-layer pipe and thermal insulation. Additionally, the manufacturer used a thick protective foil. In this way, the insulation is even better protected against both mechanical damage and moisture. It is mechanically resistant to both tears and damage. It does not move under 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.

ura ONNLINE PERT/AL/PERT 20mm x 2.0mm in lagging/thermal insulation 9mm BLUE Additionally, an essential element may be the ONNLINE PERT/AL/PERT pipe 20mm x 2.0mm with 9mm BLUE lagging/thermal insulation . This is another great model that is reliable and has really good technical parameters. It is characterized by long service life and resistance to mechanical damage. You should also pay attention to its installation, which is very easy. It can be combined with screw or clamp connectors. It can be safely used in places with high pressure. It has a protective foil that is tear-resistant. This model also has protrusions and adheres to screeds or concrete mortars, which facilitates the connection.

Appropriate underfloor heating can bring savings compared to traditional heating solutions. The energy demand of a 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 ensures thermal comfort for users. It is important to select high-quality pipes, which, thanks to their flexibility and lower heat losses, do not need to be laid in large quantities. It is worth choosing the manufacturer's offer Online .

Check out PERT/AL/PERT pipes at the Onninen wholesaler