Condensing Boilers

Important to know…

In commercial applications, exhaust gas temperatures typically ranging from 40°C to 50°C—substantially lower than those of conventional systems. These lower temperatures not only reduce energy consumption by up to 10% but also contribute to lower operational costs and carbon emissions. When combined with building envelope improvements—such as upgraded glazing or external insulation—the energy savings can be even more substantial.

The Role of the Chimney…

We design and manufacture specific flues for smoke extraction in different types of biomass boilers and stoves. The DW-FU is the most common solution for domestic and commercial heating systems. All our biomass flues are soot-resistant, but some wet systems also require protection from corrosion. For wet conditions, we recommend the DW-SILVER with a special alloy to combat corrosion. Our technical team can advise you on the best fit for your model and type of biomass heating system.

Special considerations…

When condensing appliances are used with solid fuels such as wood pellets or biomass, the chimney system must also be:

• Soot fire resistant (G-class)

• Pressure-tight (P1 or higher)

• Highly corrosion-resistant, due to the aggressive nature of the condensate

In these cases, Jeremias recommends systems like DW-KL or DW-FS which are designed and manufactured for high- temperature, high-moisture, and high-corrosion environments.

Turnkey Design and Project Management by Jeremias UK

To fully realize these benefits, the flue system must be carefully selected, correctly dimensioned, and professionally installed. To ensure optimal performance and compliance, Jeremias UK provides a complete turnkey service for commercial and industrial flue systems.