Exhaust systems for biomass boilers

Wood chip heating system with flue gas systems in a heating plant

Exhaust systems for industrial-scale biomass boilers

Sustainable thermal energy production from wood requires robust and durable exhaust technology. Schiedel offers tailor-made solutions for industrial-scale biomass boilers - safe, efficient and precisely matched to the high demands of wood chip and pellet boilers.

Efficient heat supply for municipalities and industry

Large-scale biomass boilers ensure the central supply for municipal heating networks as well as large industrial plants, enabling ecologically and economically efficient thermal energy production. These systems utilize the combustion of biomass to heat water, which is then distributed as an energy carrier to end consumers via heating networks. By utilizing wood chips or pellets, these systems offer a high-performance, CO₂-neutral alternative to fossil fuels based on regionally available, renewable raw materials. Thanks to fully automated system technology, thermal efficiency levels of approximately 90% are achieved, guaranteeing a highly efficient supply for entire districts or complex industrial processes.

Technical challenges and system safety

The exhaust gas routing for large-scale biomass boiler plants is subject to special technical requirements due to varying operating conditions. Over its entire service life, the exhaust system must safely manage the transition between dry and wet operating modes as well as fluctuating pressure conditions in both negative and positive pressure ranges.

The integration of electrostatic precipitators into the exhaust system for emission control presents an additional challenge. Similarly, the incorporation of condensation units for heat recovery requires precise technical implementation.

To overcome these challenges and ensure seamless system compatibility, we work closely with leading boiler manufacturers. This cooperation allows the exhaust system to be precisely tailored to the respective application as early as the planning phase and enables the realization of optimal solutions for complex duct routing.

What requirements do large biomass boilers place on the exhaust system?

Mode of operation

Moist / Dry

Operating pressure

Overpressure / underpressure

Operating temperature

up to 600°C

Fuels

Wood chips / pellets

Our solution for biomass boilers

ICS 90° Tee with insulation

ICS

The Schiedel ICS system with high-quality insulation of 25 mm or 50 mm is the ideal solution for the demanding operation of large biomass boilers.

LEARN MORE ABOUT ICS

System advantages ICS

  • Double-walled exhaust system
  • Inner and outer casing made of stainless steel
  • Quick and easy installation
  • No thermal insulation and welding work on the construction site
  • Pre-insulated in various insulation thicknesses
  • Low weight
  • Inner pipe continuously butt-welded
  • For high exhaust gas temperatures up to 600°C
  • Certified for pressure ratios up to 200 Pa
  • Insensitive to moisture
  • Complete delivery program

Cantilevers and free-standing chimneys

In addition to our gas flue systems, we also offer matching cantilever arms and free-standing chimney solutions that round off the portfolio for a complete and professional installation.

In addition to our gas flue systems, we also offer matching cantilever arms and free-standing chimney solutions that round off the portfolio for a complete and professional installation.

Contact us now

Do you have any questions or need more information about our exhaust systems? Our experts will help you with system selection and tender preparation through to complete implementation. We take care of all the planning work and find solutions for complex challenges such as fire protection, height calculations and the optimum use of limited space. Contact us now for individual advice and a safe solution tailored to your requirements.