Modern wood-burning stoves and fireplaces offer an eco-friendly and sustainable heating solution by using renewable fuels and producing low emissions. However, misconceptions and a lack of awareness have led to these appliances being unfairly criticized for contributing to high levels of particulate emissions. In this blog, we'll address three major myths surrounding wood-burning stoves, helping you understand their true benefits and make informed choices.
A common misconception is that wood-burning stoves are the leading source of small particulate matter in the UK. This myth stems from a statement in Defra’s Clean Air Strategy, which claimed that domestic combustion accounts for 38% of fine particulate matter. This figure was based on a 2015 government survey that significantly overestimated the amount of wood burned in stoves and fireplaces.
A more extensive survey conducted in 2019 revealed that the actual figure is less than a third of the government’s estimate, making the percentage of PM2.5 attributable to domestic combustion closer to 13%, not 38%. Additionally, the 38% figure included emissions from older stoves and open fires. Modern Ecodesign-compliant stoves produce 66% fewer emissions than these outdated appliances. Defra’s estimation also encompasses other sources of PM2.5, such as bonfires, incinerators, and wildfires, which are significant and unregulated contributors.
Another striking myth is that wood-burning stoves generate the same emissions as 18 diesel cars. This claim comes from an interpretation of test results by the Air Quality Expert Group (AQEG), but it is misleading.
The comparison is flawed because it measures car emissions at an efficient run rate of 21 mph while comparing them to a stove running at full capacity. This ignores the small particle emissions from car brakes and tyres, which often exceed exhaust emissions. Additionally, the dispersal point of emissions is different: car emissions occur at face level for children, whereas stove emissions disperse from the top of a chimney, significantly reducing human exposure.
The idea that all wood-burning stoves and fireplaces are harmful is a pervasive misconception. Morley Sage, chair of the Stove Industry Alliance, explains that this view overlooks the significant advancements in stove technology. Critics often base their assumptions on data from open fires, older stoves, and poor-quality wood fuel.
Burning wet wood on an open fire, a common but inefficient and polluting practice, contrasts sharply with using modern stoves. Modern wood-burning stoves emit up to 90% fewer emissions than open fires and up to 80% less than older stove models. SIA members were pioneers in developing technologies that meet the Ecodesign Regulations (SIA Ecodesign Ready). The SIA also supports clearSkies, an independent certification scheme for emissions and energy performance. Many clearSkies-certified appliances exceed Ecodesign standards, offering even greater environmental benefits.
Modern wood-burning stoves are an efficient, low-carbon, and sustainable heating option. They represent a significant improvement over older models and open fires, contributing far less to particulate emissions than commonly believed. By choosing clearSkies-certified stoves, you can enjoy a warm and eco-friendly home while supporting sustainable practices. The real facts about modern wood-burning stoves highlight their role in a cleaner, greener future.
