Flue gas heat exchanger (economizer)
Systematic heat recovery – robust, efficient and tailored to your processes.
Exhaust gas heat exchangers from Stemotech make efficient use of existing energy sources – by recovering heat from exhaust gas streams, they reduce energy consumption and increase the efficiency of industrial plants. Our systems are modular, durable and precisely tailored to your processes.

Key Facts
- Temperature resistance: up to 600 °C
- Materials: Stainless steel, heat-resistant alloys, carbon steel
- Versions: Finned tube, smooth tube or plate heat exchanger
- Construction: Corrosion-resistant, easy to maintain and compact
- System integration: Optionally with bypass damper and housing
- Applications: Exhaust gas recovery, process optimization, energy saving
Industries & applications
Energy & heating technology
Boiler & power plant construction
Industrial ovens
Drying systems
Process industry & recycling
Case studies
Heating technology
Recovery of waste heat in steam boiler systems
Energy saving
Exhaust gas heat exchanger for production plants to reduce fuel consumption
Drying processes
Use of hot exhaust air to preheat process air
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Economizer from Stemotech - Efficient heat recovery from industrial exhaust gas streams
Waste heat is generated in many industrial processes – especially in the form of hot exhaust gases. This unused energy has enormous potential. Stemotech exhaust gas heat exchangers, also known as economizers, enable targeted recovery of this energy and thus actively contribute to reducing operating costs and emissions.
Our systems are designed for high temperatures of up to 600 °C and are made from resistant materials such as stainless steel or heat-resistant alloys. Depending on the application, we supply versions with finned or smooth tube systems as well as in plate design. All variants are corrosion-resistant and designed for long-term industrial use.
Stemotech offers modular solutions that can be easily integrated into existing systems. On request, we can equip your system with a safety bypass or customized housings. You benefit from our manufacturer-independent advice and our ability to adapt systems precisely to your process parameters.
Exhaust gas heat exchangers from Stemotech – an important step towards greater energy efficiency and sustainability in your production.