Manufacturer of AeroFlow electric heaters and radiant storage heaters with a fireclay core, fully developed and manufactured in Germany.
Thermotec AG
Vierkirchen (Arnsdorf), SaxonyNew on Amplifa
About Thermotec AG
The Thermotec AG has been a manufacturer and specialist for electric heaters bearing the "Made in Germany" seal for over 20 years. With around 50 employees, the company develops and produces efficient electric heaters under the AeroFlow brand. The product portfolio includes radiant storage heaters with a full-surface fireclay core, infrared heaters with Duo-Chamber technology, and app-based control solutions such as FlexiSmart Pro and FlexiComfortApp. Manufacturing includes folding and welding of galvanized steel, powder coating including the interior, and final assembly of the radiators; the fireclay bricks are produced using a proprietary process. Production, administration, warehousing and shipping are located on 5,000 m² of office and hall space on a 52,000 m² site in Vierkirchen-Arnsdorf in the Lower Silesian Lusatia region between Dresden and Görlitz. The products are sold worldwide, primarily within Europe and to China.
- Site
- Vierkirchen
- Processes
- Welding technology (welded covers and side panels), Folding of the steel, Powder coating (including interior), Final assembly of the radiators, Prototype construction (development, drawings, prototypes, testing), Product-accompanying inspections / quality assurance (quality inspection of every production step,, 3D printing (in-house printer for development/prototypes), Production of fireclay castings/heat storage bricks (proprietary manufacturing process)
- Materials
- Fireclay, Galvanized steel
- Certificates
- DIN EN ISO 9001, DIN EN ISO 9001 (TÜV), Quality inspection accompanying the product, In-house test benches & temperature measurement stations
- Employees
- ca. 50
- Industries
- Living spaces, Bathrooms, Holiday home / Hobby, Photovoltaics, Industry / Commercial, Replacement night storage heaters
- 01
Idea factory & development
- 02
Prototype construction (3D printing, test benches, temperature measurement
- 03
Folding of the steel
- 04
Welding technology (covers and side panels)
- 05
Powder coating
- 06
Production of the fireclay bricks
- 07
Final assembly of the radiators
- 08
Quality inspection
- 09
Warehousing & shipping
- 10
Worldwide sales
Materials & Processes
Galvanized steel
Material for housings, fins, covers and side panels of the radiators; rust-free due to galvanization.
Fireclay
Full-surface, actively heated 2 cm thick storage core that stores heat and releases it without power supply.
Site
Vierkirchen (Arnsdorf)
DEHeadquarters: production, administration, warehousing, shipping
- Materials
- Galvanized steel, fireclay
- Production line for radiator manufacturing (folding, powder coating, final assembly)
- 3D printer
- Temperature measurement stations
- Test benches
Products & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Welding technology (welded covers and side panels)Joining | – | – | – | – | galvanized steel |
| Folding of the steelForming | – | – | – | – | galvanized steel |
| Powder coating (including interior)Surface | – | – | – | – | Steel, RAL 9010 (pure white), other colors on request |
| Final assembly of the radiatorsAssembly | – | – | – | – | galvanized steel, fireclay |
| Prototype construction (development, drawings, prototypes, testing)Engineering | – | – | – | – | – |
| Product-accompanying inspections / quality assurance (quality inspection of every production step,Testing | – | – | – | – | – |
| 3D printing (in-house printer for development/prototypes)Additive | – | – | – | – | – |
| Production of fireclay castings/heat storage bricks (proprietary manufacturing process)Engineering | – | – | – | – | fireclay |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D printer | – | – | – | – | Vierkirchen/Arnsdorf |
| Temperature measurement station | – | – | – | – | Vierkirchen/Arnsdorf |
| Test bench | – | – | – | – | Vierkirchen/Arnsdorf |
| Production line (radiator manufacturing incl. folding, powder coating, final assembly) | – | – | – | – | Vierkirchen/Arnsdorf (Saxony) |
Additional services
Reference customers
Quality & Certification
Every production step is subject to continuous monitoring with measurable quality characteristics and documented evaluation. For testing, dedicated test benches, temperature measurement stations as well as cooperation with external institutes such as the University of Leipzig are available.
| Evidence | Vierkirchen (Arnsdorf) |
|---|---|
| DIN EN ISO 9001 (TÜV) | |
| Quality inspection accompanying the product | |
| In-house test benches & temperature measurement stations |
History
Started as a manufacturer of electric heaters – active for over 20 years
- 2019
Certification according to DIN EN ISO 9001 by TÜV