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aquatherm orange system is designed for industrial or sports floor heating. The surface-heating pipe combines many advantages. It consists of the durable and corrosion-resistant material polyethylene, which ensures resistance to stress cracks and very good long-term internal pressure performance combined with high flexibility. Even at higher temperatures, the aquatherm orange system is characterized by excellent creep strength. The heating pipe is provided with an oxygen barrier according to DIN EN 1264. aquatherm orange system can also be used as radiator connection pipe.

Technical specification

  • excellent creep strength even at higher temperatures
  • low friction losses
  • high flexibility
  • oxygen-tight according to DIN EN 1264 by EVOH coating

  • new building surface heating
  • old building surface heating
  • industrial floor heating
  • sports-floor heating
aquatherm orange system heating pipes

made of Polyethylene (PE-RT)

Art.-No. Diameter Length of coil
90020 10 x 1,25 mm 250 m
90024 14 x 2,0 mm 250 m
90034 14 x 2,0 mm 500 m
90026 16 x 2,0 mm 250 m
90036 16 x 2,0 mm 500 m
90027 17 x 2,0 mm 250 m
90037 17 x 2,0 mm 500 m
90028 20 x 2,0 mm 250 m
90030 25 x 2,3 mm 250 m
90038 20 x 2,0 mm 500 m

aquatherm orange system -underfloor heating pipes made of polyethylene (PE-RT) combined with outside EVOH-barrier acc. to DIN EN 1264/16833/ISO 22391-1,2,5 have an unique molecular structure with controlled side chain distribution, ensuring an excellent environment stress cracking resistance, and a very good long term internal pressure behaviour at high flexibility.


aquatherm orange system floor heating pipe — Art. no. 90026 — 16 x 2,0 mm — oxygen-tight —  DIN EN 1264 — DIN 16833 — Manufacturing/time — Maschine-no. — Mtr.-marking — Made in Germany

Moreover, every coil is printed continuously with the length in meters. An instruction leaflet containing the identification data is added to every coil.


aquatherm orange system-heating pipes can be laid without preliminary tempering cold from the roll. For practical reasons, the heating pipes should generally be laid with the aquatherm orange system-pipe hasp.

Connection technique

Only those pipe joints indicated by the manufacturer should be used for the respective type of pipe.

The aquatherm orange system-connectors and screw connections for manifolds conform to DIN 8076 Part 1, requested in DIN EN 1264.

Linear expansion

aquatherm orange system-floor heating pipes for wet construction systems are embedded directly into the heating screed.

A change in length resulting from a temperature difference prevented by embedding into the heating screed. The material absorbs tensions so that they are not critical.


Manufacturing of the aquatherm orange system-floor heating pipes with an oxygen barrier layer is achieved according to a specially developed extrusion procedure.

Due to the EVOH-coating deposited on the basic pipe as an all-over compound, the pipe reaches an optimum tightness. The adhesive layer between basis pipe and barrier layer results in an adhesion resisting against hardest site conditions.

The oxygen-tight aquatherm orange system-underfloor heating pipes are in accordance with DIN EN 1264. A system separation by means of a heat exchanger is not necessary as per DIN EN 1264 when using these pipes.

Heating water additions

In principle only heating water additions with controlled harmlessness regarding the material used by aquatherm can be used. Heating water additions must be expressly released by aquatherm.

The application of corrosion inhibitors is not necessary when using aquatherm orange system-underfloor heating pipes.


aquatherm orange system-underfloor heating pipes are packed in siteadapted cardboards impervious to light for protection against mechanical damage or effects from UV-rays.

The pipe bundles have to be stored in the packing until installation. The pipes are supplied as a ring bundle. Remaining bundles have to be restored in the cardboard.

External supervision

The supervision contracts necessary in the scope of DIN-CERTCO have been concluded with the SKZ (South German Plastic Centre Würzburg).

Internal supervision

aquatherm orange system-underfloor heating pipes are self-supervised according to the requirements of the manufacturing works.


New buildings – surface heating

More than three decades experience in the production and application of underfloor heating systems as well as the continuous development to achieve energy saving and efficient technology, make aquatherm one of the most experienced and globally successful manufacturers of underfloor heating.

The performance of an underfloor heating system is mainly determined by the quality of the installed components:


  • insulation
  • aluminium foil
  • knob plate
  • element 25
  • heating pipe
  • PE-RT pipe
  • manifold technology
  • control technique

Industrial surface heating

aquatherm industrial surface heating is designed as a hot water heating with plastic pipes (PE-RT-pipes) integrated in the floor construction. 

Industrial surface heating systems are used in:


  • production halls
  • markt halls
  • exhibition halls
  • assembly halls
  • maintenance halls
  • aircraft hangars
  • logistic centers
  • warehouses
  • high bay warehouses
  • distribution centers

Sports floor heating system

A sports floor that incorporates an invisible heating system can help provide athletes the necessary well-being to achieve optimal performance. Heated sports floors save space and offer the architect unlimited design options.

The aquatherm sports underfloor heating system provides a balanced temperature profile for the entire hall through uniform heat dissipation, thus providing outstanding comfort and a healthy indoor climate. It also eliminates the unnecessary drafts and swirling dust created by other types of heating systems.

aquatherm control components for aquatherm black system and aquatherm orange system

aquatherm radio control system of the next generation for house and flat. The system combines the latest technology from the field of smart home and IOT. The heating/cooling system is controlled by means of the WLAN router, as well as mobile devices, such as smartphone, tablet or laptop.

The radio control system consists of a room thermostat, multichannel receiver and hub. In case of cooling, a dewpoint monitoring can be connected by means of an external humiditiy sensor.

aquatherm heating/cooling manifold for individual adjustment of the volume flows needed. Manifolds are prefabricated and ready for connection, optionally with control valve or dynamic valve for the hydraulic balance.


Industrial surface heating

Technical information: surface heating for commercial and industrial buildings

Sports floor heating system

Technical information: surface heating for sports facilities.

Contact: aquatherm GmbH | Biggen 5 |  57439 Attendorn Germany | Tel: +49 2722 950 0 |

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