An innovative technology promises to change forever the way firewood is used as a heat source in homes. Researchers at Oregon State University have developed an automated system that injects primary and secondary air into wood stoves, allowing for a reduction of up to 95% in emissions of fine particulate matter (PM2.5), the most dangerous pollutant for respiratory and cardiovascular health.
This innovation could transform a traditionally polluting system into a clean and safe option for millions of families. PM2.5 particulate matter can penetrate deep into the lungs and reach the bloodstream, causing chronic diseases such as asthma, lung cancer, or heart disorders.
Although the use of wood stoves has decreased in many regions, they remain one of the main sources of this type of domestic pollution. Old stoves, without combustion control systems, are still widely used in rural and low-income urban areas.
One of the greatest challenges of these traditional stoves is that they release the most pollutants during ignition and wood reloading. These critical phases are usually not considered in laboratory tests, so many models pass controls without guaranteeing good performance in real life. This is where this new generation of smart stoves comes in, adjusting the airflow automatically to achieve a more complete and clean combustion at each stage of the process.
More than heat: renewable, clean, and safe energy
The automatic injection system not only improves indoor and outdoor air quality but also optimizes firewood consumption, reducing costs and improving energy efficiency. By reducing creosote buildup, the risks of chimney fires are also significantly reduced. The use of sensors and intelligent controls ensures that combustion constantly adapts to real environmental conditions, ensuring safety and efficiency.
This innovation has global implications. It is estimated that 2.7 billion people in the world still cook with open fire, exposing families to high levels of toxic smoke. The technologies developed for heating are beginning to be applied in clean cooking stoves, especially in developing regions, where they could make a crucial difference in public health.
The commitment to improving wood stoves goes beyond technology: it is part of an equitable energy transition that allows rural communities to access clean, safe, and sustainable solutions without giving up the use of local resources such as biomass. In this sense, these new stoves are shaping up as key allies in combating both pollution and energy inequality.
They demonstrate that thermal batteries will revolutionize domestic heating in the UK
Millions of people in the UK could successfully switch to electrified domestic heating with low carbon emissions and, at the same time, relieve pressure on the grid by using innovative heat battery technology.
This would allow the UK to meet its net-zero emissions targets by 2050, according to the main finding of the historic Neat Heat trial, led by UK Power Networks, in partnership with OVO and tepeo.
The Neat Heat trial lasted 18 months and involved the installation of the zero-emission boiler (ZEB) from tepeo, which uses heat battery technology, in customers’ homes in the southeast and east of England.
