January 12, 2025

Are Log Burners Bad for the Environment? Let’s Get Real About Cosy Heat

Environmental Impact of Log Burners

There’s something irresistibly charming about curling up by the glow of a log burner on a chilly evening. But is that warm, rustic vibe hiding an environmental cost? Let’s break it down and see if your favourite source of heat is a friend or foe to the planet.

Air Pollution

When it comes to air pollution, log burners don’t have the cleanest reputation.

Particulate Matter Emissions

Log burners release tiny particles called particulate matter (PM), especially PM2.5 and PM10. These are so small that they slip past your nose and throat’s defences, getting deep into your lungs—and even your bloodstream. Sound scary? It is. PM2.5 has been linked to heart and lung diseases and is flagged by the World Health Organization as one of the most harmful pollutants.

In the UK, domestic wood burning is responsible for 17% of small particle pollution—more than road traffic. Even the latest “eco-friendly” stoves emit significantly more PM2.5 than a modern lorry. So, while your stove may be new, the emissions still aren’t quite as clean as you’d hope.

Greenhouse Gas Emissions

Many people assume wood burning is carbon neutral—after all, trees absorb CO2 as they grow. But here’s the catch: burning wood releases carbon dioxide (CO2), carbon monoxide (CO), and nitrogen oxides (NOx). These gases all contribute to climate change and poor air quality.

Plus, it’s not just what happens inside your stove that matters. Harvesting, chopping, and transporting logs generate even more emissions, making that "natural heat" a little less eco-friendly than it seems.

Deforestation

It’s not just about what goes up your chimney—log burners can have an impact before you even strike a match.

Sustainable Wood Sourcing

If your wood comes from irresponsible logging, your log burner might be contributing to deforestation. That’s a problem for biodiversity, carbon storage, and our climate.

The good news? Choosing sustainably sourced logs makes a world of difference. Look for wood certified by organisations like the Forest Stewardship Council (FSC). When forests are managed properly, new trees are planted to replace the ones cut down, keeping ecosystems in balance. It’s a small switch, but it helps keep forests thriving.

Minimising Environmental Impact

Feeling the heat about your log burner’s impact? Don’t worry—there are ways to make it more eco-friendly.

Using Seasoned Wood

Burning Dry Wood

One of the simplest ways to cut emissions is by burning seasoned wood. Freshly cut logs can contain up to 50% moisture, which means more smoke, tar, and pollution. Think of it like trying to light a soggy campfire—it’s all smoke and no flame.

Dry, seasoned wood (with less than 20% moisture) burns hotter, cleaner, and more efficiently. It produces less soot and keeps your chimney cleaner too, reducing the risk of chimney fires. If you want a cleaner burn, dry is the way to go.

Choosing Efficient Stoves

Newer stoves can make a huge difference when it comes to pollution.

Regular Maintenance and Servicing

To keep your stove running efficiently, regular maintenance is key. Give the chimney a good sweep to avoid blockages, and have the stove serviced annually by a professional. A well-maintained stove burns fuel more efficiently, which means fewer emissions and a warmer home.

Think of it like your car—you wouldn’t skip an MOT and expect it to run smoothly, right? The same applies here. Plus, regular check-ups catch any issues early, helping to keep your stove eco-friendly.

Supporting Responsible Forestry Practices

Where your logs come from matters. Supporting responsible forestry means you’re helping protect wildlife habitats, maintain healthy forests, and reduce your carbon footprint.

Opting for locally sourced firewood reduces emissions from transport—fewer miles on the road means fewer emissions in the air. Many suppliers also run replanting schemes to offset the wood they sell, helping ensure forests are replenished for future generations.

By making smarter choices, you can enjoy that crackling fire guilt-free. It’s all about balance: the warmth you love, with a cleaner conscience.

Enjoy your log burner, but remember—it’s more than just a cosy centrepiece. With the right approach, you can heat your home while keeping the planet in mind.