Manufacturer of handcrafted infrared heating systems with proprietary ESHC+ heating conductor technology, based in Lüdenscheid
Welltherm GmbH
LüdenscheidNew on Amplifa
About Welltherm
Welltherm GmbH is a company operating throughout Europe in the field of infrared heating, with its development and production site in Lüdenscheid. The company manufactures infrared heating systems in craftsmanship quality, including glass infrared heaters, powder-coated metal infrared heaters (PB series), hybrid glass radiant convectors, bathroom radiators, heating rods, electric underfloor heating, radiant heaters with DAZEX technology, church pew and desk heaters, and high-temperature heaters for car dealerships, industrial halls and fitness studios. The core element is the proprietary ESHC+ technology (entire surface heat conductor) with a stainless steel heating conductor that covers more than 70 % of the heating surface, ensuring uniform heat distribution with high radiant efficiency. The glass heaters consist of 5 mm ESG-H safety glass with a galvanized, powder-coated metal housing and thermally resilient silicone insulation. The long-standing experience in manufacturing heating elements for industrial applications – such as laboratory equipment, medical technology and the automotive industry with temperature tolerances of ±0.5 °C – results in high quality and process standards. In addition to customer-specific manufacturing, Welltherm offers planning software, on-site measurement, project planning, installation and final acceptance as a full service.
- Site
- Lüdenscheid
- Processes
- Manufacture of glass infrared heaters (ESHC+ technology), Manufacture of powder-coated metal infrared heaters (PB series), Customer-specific manufacturing / handcrafted customized infrared heating systems, Manufacture of heating elements for industrial applications (laboratory equipment, medical, Planning app/demand assessment, On-site measurement, Project planning, On-site installation
- Materials
- ESG-H safety glass, ESG safety glass, Stainless steel (heating conductor), Galvanized metal (powder-coated), Silicone insulation, ESG-H safety glass (5 mm), Stainless steel heating conductor, Galvanized metal, powder-coated
- Certificates
- DIN EN ISO 9001:2015, VDE-EMC, EIHA Quality Label Infrared, Production monitoring TÜV Süd, EN 60335-1 / EN 60335-2-30, Ecodesign Directive 2009/125/EG
- Industries
- Residential buildings/Construction, Car dealerships, Industrial halls, Fitness studios, Churches, Office
- 01
Component selection from suppliers in Germany
- 02
Development of the heating technology (ESHC+)
- 03
Handcrafted production at the Lüdenscheid site
- 04
Testing and production monitoring (TÜV Süd)
- 05
Distribution via sales points throughout Germany
- 06
On-site measurement, project planning, installation
- 07
Final acceptance
Materials & Heating Technology
ESG-H safety glass (5 mm)
Fire-resistant, durable safety glass with heat-soak test as the front panel of the glass infrared heaters.
Stainless steel heating conductor
Full-surface ESHC+ heating conductor geometry for uniform heat distribution and minimal magnetic fields.
Galvanized metal, powder-coated
Rear panel and housing of the heaters with limited surface temperature.
Silicone insulation (0.8 mm)
Thermally resilient insulation in front of and behind the heating element for optimal heat transfer with maximum electrical safety.
DAZEX radiator technology
Radiant heater generation with almost completely reduced visible light radiation.
Locations
Lüdenscheid
DEHeadquarters, development and production site
- Part weight / size
- 9,6–22,0 kg (high-performance glass heater, max. 1500 × 600
- Lot size
- Customer-specific manufacturing / craft production
- Materials
- ESG-H safety glass, stainless steel, galvanized powder-coated metal, silicone
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of glass infrared heaters (ESHC+ technology)Assembly | – | 1500 mm × 600 mm × 22 mm | 9,6 kg – 22,0 kg | – | ESG-H safety glass (5 mm), Stainless steel heating conductor, Galvanized metal (powder-coated), Silicone insulation |
| Manufacture of powder-coated metal infrared heaters (PB series)Surface | – | – | – | – | Metal (powder-coated) |
| Customer-specific manufacturing / handcrafted customized infrared heating systemsAssembly | ±0.5 °C (temperature tolerance for industrial | – | – | – | Stainless steel, Glass, Silicone |
| Manufacture of heating elements for industrial applications (laboratory equipment, medicalAssembly | – | – | – | – | Stainless steel |
Additional services
Quality & Certification
Production is certified to DIN EN ISO 9001:2015; the glass infrared heaters carry VDE and EMC certification, and production monitoring is additionally performed by TÜV Süd. The radiant efficiency is tested according to IEC 60675-3 (measurement method based on DIN EN 416-2).
| Evidence | Lüdenscheid |
|---|---|
| DIN EN ISO 9001:2015 | |
| VDE-EMC | |
| EIHA Quality Label Infrared | |
| Production monitoring TÜV Süd | |
| EN 60335-1 / EN 60335-2-30 | |
| Ecodesign Directive 2009/125/EG |
History
- 2017
Receipt of the quality management certification to DIN EN ISO 9001:2015
- 2024
Receipt of the EIHA quality label for the metal infrared heaters PB series (certificate 2412-004)