Combustion air preheater from Stemotech
More efficiency in the combustion process – compact, robust, economical.
Our combustion air preheaters improve the energy efficiency of your system by specifically preheating the incoming air to the optimum temperature. This reduces fuel consumption, lowers the flue gas temperature and increases overall efficiency – with a compact design and individually adapted finned tube construction.

Key Facts
- Function: Preheating the combustion air to increase efficiency
- Design: finned tube systems, adaptable to process and space conditions
- Temperature range: depending on design and requirements
- Efficiency: reduction in fuel consumption of up to 2 % possible
- Advantages: Low investment costs, short amortization period
- Integration: Easy to retrofit, even where space is limited
Industries & applications
Energy & heating technology
Steam boiler systems
Industrial ovens
Power plants
Drying systems
Case studies
Combined heat and power plant
Retrofitting a compact air preheater to increase the efficiency of an existing boiler system
Process heat
Lowering the exhaust gas temperature to meet current emission limits
Industrial furnace construction
Individually designed finned tube heat exchanger for preheating the combustion air
Let's find the best cooling solution for your company together!
Combustion air preheaters from Stemotech - save energy, increase efficiency, reduce emissions
Combustion air preheaters are an effective way of optimizing the efficiency of combustion processes. The targeted heating of the incoming air reduces the energy requirement of the burner – while maintaining the same output. This not only lowers fuel consumption by up to 2 %, but also reduces the exhaust gas temperature and the associated emissions.
Stemotech supplies robust finned tube systems that have been specially developed for this area of application. Thanks to their modular design, our air preheaters can be optimally adapted to existing systems and individual process requirements – even where space is limited.
Compared to conventional solutions, our systems score points with low investment costs, short amortization times and minimal maintenance requirements. The compact design, coupled with our manufacturer-independent advice and many years of engineering expertise, makes our air preheaters an economically and technically sensible addition to any energy-intensive system.
Stemotech – because every kilowatt hour counts.