What Level of Moisture is Ideal For Firewood Logs?

Selecting the firewood type can be quite a challenge. You have to start by picking the tree species with top choices being premium birch, oak and ash. Next comes the decision of whether to go for wet wood in bulk, affordable seasoned logs or high-quality kiln-dried firewood.

Moisture content is another aspect to take into account. Thanks to Defra's Ready to Burn standard, all packaged wood fuel sold in the UK must have a moisture content of no more than 20%.

However, not all wood fuels are made equal.

Speciality suppliers such as Lekto Woodfuels dry their wood for an extended period, allowing it to achieve exceptionally low moisture levels below 10%. But what exactly is the benefit of this? Are the improved efficiency and cleanliness of the burn worth the higher price tag compared to inexpensive supermarket logs?

We reached out to our wood fuel experts to gather their insights on the matter.

What Is the Moisture Content Limit For a Kiln Dried Log?

To ensure that firewood logs burn well, they should be dried to have a moisture content of 20% or lower. When logs have moisture content they become harder to light, create more smoke and result in a fire that doesn't produce much heat. Due to new government rules, all wood fuel sold in the UK (except for wet wood sold in amounts exceeding two cubic meters) must meet this moisture level. You can verify this by looking for the official Ready to Burn label on the wood you purchase.

While some individuals may choose logs seasoned naturally, it can take up to two years for them to completely dry out, and even then they might not achieve the moisture level. On the contrary, kiln-dried logs such as those provided by Lekto Woodfuels are dried in an environment ensuring that they have a moisture content, below 20%. This guarantees a burn with minimal smoke emissions and high heat output, making kiln-dried logs the optimal choice for any home fire. 

Why Does The Moisture Content Of Firewood Matter? 

The moisture level in firewood is crucial, for various reasons, including legal health and environmental considerations.

Legal Reasons

In the UK, it is now against the law to burn wood. Back in 2020, the UK government introduced a law aimed at reducing pollution from households by prohibiting the sale of wood and regular coal. This effort called the Clean Air Strategy was implemented between 2021 and 2023. If caught burning wood that contains more than 20% moisture, you might face legal repercussions. Opting for dried logs from Lekto guarantees adherence to these new rules.

Health Reasons

Burning wood that is wet can be harmful to your health. When you burn wood, it releases a lot of tiny particles (PM2.5) into the air. These particles can get into your lungs and bloodstream, increasing the chances of respiratory problems, heart issues and even lung cancer. For people with conditions like asthma, burning wood can make their symptoms worse. Choosing logs or kiln-dried wood reduces harmful emissions, making your fires safer, for your loved ones and neighbours.

Environmental Reasons

Burning wood that is wet produces smoke emissions that are four times more harmful compared to dry wood. When you use logs it not only results in heat but also increases pollution levels. Studies conducted by Defra indicate that opting for kiln-dried logs can cut emissions by as to 50% making this option much more eco-friendly. With climate change and air quality concerns gaining importance, choosing kiln-dried logs is an easy yet impactful way to reduce your carbon footprint.

Why Choose Lekto Kiln-Dried Logs?

At Lekto Woodfuels we take pride in providing top-notch kiln-dried logs that have a moisture content below 20%. Whether you require a small bag for a night or a sizable crate for a steady supply, our logs are the ideal fuel choice. They burn cleanly and are environmentally friendly, ensuring a fire with minimal smoke and maximum heat. 

Make the switch to Lekto Woodfuels and enjoy:

• Fires that last longer: kiln-dried logs burn hotter and longer than wood or unseasoned wood, giving you value for your money. 
• Less smoke and more comfort: savour a fire with reduced smoke, making it more suitable for both indoor and outdoor settings. 
• Flexible sizes for every occasion: select from our variety of packaging options, ranging from bags for weekend use to large crates for long-term firewood storage.

 Ignite your fire with the logs. Purchase Lekto kiln-dried logs today!

Frequently Asked Questions (FAQ)

Why is wood dried in a kiln superior to seasoned wood? 

Kiln-dried wood undergoes drying in a setting that maintains a moisture content of below 20%. On the other hand, seasoned wood is air-dried naturally and can take up to two years to achieve similar moisture levels, if it ever does. Additionally, kiln-dried wood is devoid of pests and mould, making it a cleaner and more efficient option.

Can I store kiln-dried logs outside?

You can keep kiln-dried logs outdoors as long as you store them in a sheltered and dry spot. Elevating them above the ground and shielding them from rain helps maintain their moisture levels and keeps them ready for when you need them.

What happens if I burn wet wood?

Burning wood that is damp creates smoke, adds to the build-up of creosote in your chimney, and results in burning efficiency. This translates, into needing clean-ups risking chimney fires and having poor heat output. Additionally, it is now against the law in the UK due to its impact on air quality. 

How can I determine the moisture level of my firewood? 

The most effective method is to use a moisture meter. Just insert the probes into the wood to obtain an accurate measurement. For burning efficiency, try to achieve a moisture content of 20% or lower.

What types of wood are best for burning?

Dense hardwoods like oak, ash and birch make excellent fuel sources because of their energy content. Lekto kiln-dried logs feature a blend of these varieties, guaranteeing an enduring and effective fire.

Make your fires last longer and burn cleaner by switching to Lekto kiln-dried logs. Visit our website to explore different packaging options that fit your preferences. With Lekto you can ensure that every fire you ignite burns hotter, cleaner and produces fewer emissions. 

Place your order now with Lekto Woodfuels for quick and dependable delivery throughout the UK. Your ideal firewood is just a click away!