Treetops of a deciduous forest

Environmentally friendly heating with renewable energy

Fine dust is currently a highly sensitive topic that affects every one of us. The question is not only how harmful these particles are to humans, but also where they come from. Fine dust is created partly through natural processes, but it is also a man-made problem. Alongside diesel vehicles and cruise ships, wood stoves and fireplaces are often labeled as the black sheep of air pollution. But how much fine dust do wood stoves or fireplaces in our homes actually produce?

Clarity about fine dust

When it comes to systems that have been in operation for more than 20 years, a significant amount of particles such as soot and fine dust can escape. However, these outdated systems often no longer meet the standards of the Emission Control Act. According to this regulation, systems installed before 2015 are limited to 4 grams of carbon monoxide and 0.15 grams of dust per cubic meter. Newer systems, on the other hand, must comply with much stricter limits of 1.25 grams of carbon monoxide and 0.04 grams of dust per cubic meter.

Since the law came into effect in 2011, outdated systems have been taken out of service or retrofitted with special filters. Modern wood stoves and fireplaces are therefore no longer considered major sources of fine dust emissions, but rather environmentally friendly heating systems using renewable energy sources.

Graphic showing positive trends in modern wood-burning fireplaces

Reasons for its popularity

Wood-burning fireplaces and stoves are highly popular among young and old, in both urban and rural areas, and across all income levels. It’s therefore no surprise that one in four households owns a fireplace or tiled stove. These stoves are used not only during the cold months but also for cooking and baking – making them a versatile and appealing alternative to conventional heating systems.

Wood is the number one renewable energy source in the heating market – more than two-thirds of renewable heat comes from wood. Its popularity is partly historical and also deeply connected to the sense of comfort and well-being that a warm fireplace or stove brings to a home.

Graphic illustrating the advantages of wood as a renewable energy source

Wood is a relatively inexpensive energy source, regionally available, and safe to store and handle. It’s no surprise that wood is more popular than geothermal and solar thermal energy. However, these energy sources should not be seen as competitors. In a hybrid heating system, for example, wood and solar thermal energy can complement each other in an ecologically meaningful way when used together in a central heating system.

Graphic showing the advantages of a hybrid heating system

Wood is undoubtedly a renewable energy source. German forests are growing – sustainably! About one-third of the country is covered with forest, and despite ongoing use, there is still an annual increase of around 13%. A large portion of this consists of hardwood, which is less in demand in industry and therefore provides significant reserves for energy use.

Stay clean!

Anyone who focuses on a modern, sustainable heating system has already laid the foundation for low-emission combustion. However, behind every good stove system stands an environmentally conscious person who contributes to clean operation through proper handling. After all, what’s the use of the most advanced wood heating technology if it isn’t used correctly?

Graphic illustrating annual wood growth and sustainable utilization

The biggest risk factors include using wood that is too moist, logs that are too large, and reducing the combustion air too much. These three mistakes often lead to unnecessary emissions – even with high-quality wood-burning systems, and usually out of ignorance. The best solution to prevent this is an electronic burn control system.

OUR TIPS FOR CLEAN COMBUSTION:

  •  Use only dried, untreated wood that has been properly stored.
  •  Pay attention to the size of the logs and the right amount of wood.
  •  Ensure sufficient oxygen supply.
  • The best ignition results are achieved with natural fire starters such as the “Fidibus”, a softwood fiber stick soaked in paraffin.
Graphic showing the proper way to heat with wood

Conclusion

Modern wood stoves are an environmentally friendly way to heat with renewable energy. When used as part of a hybrid heating system, different energy sources can complement each other perfectly. Responsible operation is essential for proper and efficient use.

Expert advice

Every low-emission fireplace must also be operated correctly. Avoid heating mistakes such as using wood that is too moist or logs that are too large. Ideally, an electronic stove control system will help you operate your wood-burning fireplace as efficiently as possible.

Portrait of Klaus, Head of Customer Service
Klaus Leihkamm, Head of Craftsman Support & Customer Service

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