ZEWOTHERM Corporate Group

Achieving more together

ZEWOTHERM sees itself as a reliable and responsible partner for our customers in the sanitary and heating trade. The motto "Achieving more together" embodies what we stand for: Competence in production, sales, and joint marketing. We are always working to provide our customers with advantages in production and sales and thus actively shape their success.

In addition to the Remagen facility, which comprises various systems for surface laminating, vacuum forming, automatic foaming and injection moulding, the ZEWOTHERM corporate group includes specialised production and sales organisations as well as company participation in order to be able to individually meet the different requirements of the sanitary and heating market in Germany and Europe. Thus, business contacts that have grown over the years have become solid partnerships that actively shape the ZEWOTHERM way and always in the interests of our customers.

Achieve more together.

The U-Tube-Systems production plant located in the Netherlands manufactures high-quality 5-layer heating pipes and distribution technology for modern surface heating and cooling systems. The initial good cooperation soon led to ZEWOTHERM acquiring a stake in the Dutch company in order to deepen the clear orientation of specially produced product components.


In Reichshof-Wehnrath we produce our own polyethylene heating pipes under a joint venture with Unatherm, the early pioneer in PE pipe technology and a family-owned company also committed to innovation. The production of high-quality pipes requires constant quality monitoring from the delivery of the material to the product ready for dispatch.

Special attention is paid to the monitoring of pipe production - it is carried out without interruption: Inspection of incoming goods Monitoring of the production process Tests during and after production Final inspection before dispatch The basis for quality assurance are the testing and monitoring regulations of the Süddeutsches Kunststoffzentrum and other European testing institutes, the production process according to DIN ISO 9002 and the corresponding DIN regulations. Every raw material delivery is checked for the melt index according to DIN 53735, as this is decisive for the later quality of the pipe. Only flawless goods are released for production. The machines and equipment used for production are always state-of-the-art. For example, our SPS-controlled extruders are the basis for optimum pipe production.

During pipe production, the production process is continuously monitored in accordance with the guidelines of DIN 8074/8075 and the SKZ guidelines HR 3.2/HR 3.16. The dimensional accuracy of wall thickness and outer diameter (DIN 8075 4.2), the surface and the water-bearing inner surface are checked. All measured data is documented and can be retrieved at any time, even years later. After completion of the pipes, the following are tested: the change after warm storage (DIN 8075 4.4) the homogeneity of the material the pressure stability at 20° C and 95° C (DIN 53759) In order to carry out these tests, our laboratory is equipped with the most modern measuring instruments. Only controlled and faultless pipes are released for shipment.

At the Bochum facility, thousands of square metres of high-quality EPS system insulation products leave the premises every day alongside the plant at the company headquarters in Remagen. These include system panels, and multi-insulation rollers, Velcro system panels and/or other EPS-laminated products. Located directly at the factory of the sub-supplier Philippine, this means an immense strategic and logistical advantage in order to be able to deliver the "white goods" quickly and directly to the local customers by forwarding agency and/or own vehicle fleet.

Independent, family-run producer and service provider in the field of panel heating systems based in Asbach, Germany. ratiodämm is not a "system brand" in the classic sense, but a flexible supplier to OEM customers from industry and trade as well as qualified specialist dealers with their own focus. The range includes everything for heat distribution and insulation systems, pipe fastening technology and panel heating - from jointly developed product components to individual solutions and complete systems, even beyond standard applications. In addition to the highest quality standards, discretion, reliability and a fair price-performance ratio are the company maxims that are lived every day.


Independently acting company with the aim of developing and manufacturing panel heating products for industry and specialised trade (OEM). ibb Systeme manufactures, refines and sells components, complete solutions and services in the fields of thermoformed parts/deep-drawn parts, special lamination, injection moulding/moulded plastic parts as well as special constructions and tools. Individual solutions at an appropriate price/performance ratio and thus added value are offered to customers from industry and system suppliers in the OEM business segment.


Our sales partner in Holland, based in Breda, is an intensive contact that has grown over the years and exclusively distributes the ZEWOTHERM heating and energy systems for the Dutch specialist partners as a wholesale partner. In addition to products, he is also a service supplier for the professional installation of panel heating systems for new buildings and renovation projects, as well as a competent contact for planning and design.