
Development and manufacturing of underfloor heating systems, heating foils, infrared radiators and frost protection heating in Saarland.

Jollytherm GmbH
Schiffweiler, GermanyNew on Amplifa
About Jollytherm
Jollytherm GmbH is a traditional German family-owned company based in Schiffweiler in Saarland that has been developing and producing heating systems since 1983. The portfolio includes electric and hydronic underfloor heating, the Vario combination of both systems, thin heating foils for laminate and parquet floors, and infrared radiators with glass, metal, or ceramic/natural stone fronts. The company also manufactures radiator and wall claddings, shower back panels, kitchen back panels, and frost protection heating for pipes, roof gutters, open areas and plants. Manufacturing includes, among other things, the carbon coating of the heating foils (foil thickness 0.4 mm), the production of plastic small parts for heating mats, and the final assembly of the infrared radiators at its site in Germany; in addition, the company offers OEM manufacturing, custom-made products, and materials list and project planning. Materials used include, among others, PEX pipes (Dowlex, 8 mm, per DIN 4726), plastic, copper protective braid for heating cables, carbon, artificial stone, as well as glass, ceramic, natural stone and metal for radiator fronts. Customers include the heating and sanitary engineering sector, the building materials and tile wholesale trade, the electrical and SHK trades, and renovation and new-build projects.
- Site
- Schiffweiler
- Processes
- Manufacturing of carbon coating for heating foils, Manufacturing of plastic small parts for heating mats, Final assembly of infrared radiators, OEM manufacturing and custom-made products / large orders, Manufacturing of heating foil (0.4 mm thin), Manufacturing of hydronic underfloor heating with patented dual-pipe system (8 mm thick), Materials list creation and project planning, Product sampling / custom solutions for presentations
- Materials
- Dowlex (PEX) pipe ø 8 mm, PEX pipe (DIN 4726), Plastic (16 mm pipe), Copper (protective braid heating cables), Artificial stone (radiators), Carbon (coating of heating foils), Plastic (16 mm pipe, plastic small parts), Copper protective braid
- Certificates
- TÜV, VDE, TÜV test documents, VDE test documents
- Founded
- 1983
- Industries
- Heating/sanitary engineering, Building materials and tile wholesale, Electrical/SHK trades, Renovation and new construction, Construction sector renovation and new build
- 01
Materials list and project planning
- 02
Manufacturing of carbon coating for heating foils
- 03
Manufacturing of plastic small parts for heating mats
- 04
Assembly of heating mats/heating foils
- 05
Final assembly of infrared radiators
- 06
Storage and dispatch via freight forwarder/parcel service
Materials and Processes
Dowlex (PEX) pipe ø 8 mm
Oxygen-tight heating pipe per DIN 4726, rated up to 6 bar pressure and 90 °C, for hydronic underfloor and wall heating.
Plastic (16 mm pipe, plastic small parts)
Used for wall heating pipes and the in-house manufactured plastic small parts of the heating mats.
Copper protective braid
All-round protective braid of the double-insulated heating cables, approx. 2.5 mm thin.
Carbon coating
Coating material of the 0.4 mm thin heating foil, manufactured in the company's own plant.
Artificial stone
Material of the radiators (Terraheat) for indoor use.
Locations

Schiffweiler
DEHeadquarters and manufacturing
- Materials
- PEX, plastic, copper, carbon, artificial stone
Products and Components




Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of carbon coating for heating foilsSurface | – | – | – | – | Carbon |
| Manufacturing of plastic small parts for heating matsPlastics | – | – | – | – | Plastic |
| Final assembly of infrared radiatorsAssembly | – | – | – | – | – |
| OEM manufacturing and custom-made products / large ordersAssembly | – | – | – | – | – |
| Manufacturing of heating foil (0.4 mm thin)Assembly | – | – | – | – | – |
| Manufacturing of hydronic underfloor heating with patented dual-pipe system (8 mm thick)Assembly | – | – | – | – | – |
| Materials list creation and project planningEngineering | – | – | – | – | – |
| Product sampling / custom solutions for presentationsAssembly | – | – | – | – | – |
Additional services
Reference customers
Quality
Product quality and durability are core to the manufacturer's claim; the PEX pipes are subject to continuous production control and are tested per DIN Certco and DIN pr. Euro standard 1264-2. TÜV and VDE documents for the products are available for download.
| Evidence | Schiffweiler |
|---|---|
| TÜV test documents | |
| VDE test documents |
History
- 1983
Production start in Saarland; traditional family-owned company
- 1996
Worldwide first market launch of a hydronic underfloor heating system only 8 mm thick with patented dual-pipe system
- 2008
Start of in-house manufacturing of the 0.4 mm thin heating foil