
Manufacture of electric space heaters, finned-tube heaters, spiral-finned tubes and air conditioning units for industry and trade

Kraemer & Kraus Wärmetechnik GmbH
SiegenNew on Amplifa
About Kraemer & Kraus Wärmetechnik
Kraemer & Kraus Wärmetechnik GmbH, based in Siegen, is a manufacturer and producer of electric heating solutions for rooms and for industrial and commercial applications. The product range includes electric space heaters such as finned-tube heaters and units, heat radiators, infrared radiators and industrial fan heaters, as well as bench heaters and door air curtains. In addition, the company produces spiral-finned tubes and heating systems, UNICLIM brand air conditioning units, condensate dehumidifiers, room temperature controllers and accessories. The finned-tube heaters are available, among other options, as explosion-proof variants with ATEX certification and in dust- and water-tight versions (IP66/IP67) made of corrosion-resistant stainless steel 1.4512. In addition to production, the company offers consulting, planning and customised special solutions in the fields of electric heating, process heat utilisation and heat recovery. Deliveries are made worldwide; the company can be contacted in German, English, French and Polish.
- Site
- Siegen
- Processes
- Manufacture of finned-tube heaters, Manufacture of spiral-finned tubes, Manufacture of heat radiators, Manufacture of infrared radiators, Manufacture of industrial fan heaters, Manufacture of air conditioning units (UNICLIM), Manufacture of explosion-proof finned-tube heaters (ATEX), Consulting
- Materials
- Stainless steel, Stainless steel 1.4512
- Industries
- Industry, Trade
- 01
Consulting
- 02
Planning
- 03
Manufacturing
- 04
Special solutions
Materials and Processes
Stainless steel 1.4512
Corrosion-resistant material for finned-tube heaters, including dust- and water-tight versions (IP66/IP67).
Sites

Siegen
DEHead office and manufacturing
- Materials
- Stainless steel 1.4512
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of finned-tube heatersAssembly | – | – | – | – | Stainless steel |
| Manufacture of spiral-finned tubesForming | – | – | – | – | – |
| Manufacture of heat radiatorsAssembly | – | – | – | – | – |
| Manufacture of infrared radiatorsAssembly | – | – | – | – | – |
| Manufacture of industrial fan heatersAssembly | – | – | – | – | – |
| Manufacture of air conditioning units (UNICLIM)Assembly | – | – | – | – | – |
| Manufacture of explosion-proof finned-tube heaters (ATEX)Assembly | – | – | – | – | Stainless steel |
Additional services