The short answer
Both kiln-dried and naturally seasoned firewood can burn very well when it is genuinely dry and stored correctly. In England, the key benchmark is moisture content: wood fuel sold in volumes under 2m³ must be certified as Ready to Burn, confirming a moisture content of no more than 20%.
The drying label alone does not decide how well a log will perform. Species, log size, moisture content, storage and stove operation all matter. At Verrington Firewood, we believe carefully barn-dried, naturally seasoned logs offer the best overall balance of dependable heat, responsible processing, local supply and value.
What is kiln-dried firewood?
Kiln-dried logs are placed in a heated chamber where controlled temperature and airflow speed up moisture removal. The process can produce consistently dry firewood in a relatively short time.
Advantages of kiln-dried logs:
- Fast, controlled drying
- Generally consistent moisture levels
- Reliable year-round production
- Easy lighting and strong heat output when stored correctly
Points to consider:
- The kiln requires energy, although the impact varies with the fuel source and efficiency of the drying system
- Extra processing can affect the selling price, but this varies between suppliers
- Like any dry log, kiln-dried firewood can absorb moisture again if it is stored badly after production or delivery
What is naturally seasoned firewood?
Naturally seasoned logs are split, stacked and allowed to dry over time through moving air. Good seasoning is not simply leaving timber outdoors. It requires suitable log sizes, plenty of airflow, protection from persistent rain and enough time.
Advantages of naturally seasoned logs:
- Lower processing energy than forced kiln drying
- Well suited to local, carefully managed supply
- Excellent heat and flame when fully seasoned
- A traditional process that allows the timber to dry steadily over time
Points to consider:
- Natural drying takes much longer
- Results can vary if logs are stacked badly or sold too soon
- Seasoned wood can absorb moisture again if it is left exposed to rain or stored without ventilation
Why barn drying makes the difference
Barn drying combines natural seasoning with protection from the worst of the weather. Split logs are given time and ventilation while remaining sheltered from repeated rain. Done properly, the result is clean, dependable firewood that lights readily and gives strong, steady heat.
For us, this is the sweet spot. We are not trying to rush nature; we are giving the wood the time, airflow and protection it needs. That is why we favour properly barn-dried, naturally seasoned logs.
Which burns hotter?
At a comparable moisture content, neither “kiln-dried” nor “seasoned” automatically means hotter. Dry wood burns more efficiently than wet wood because less energy is wasted driving off moisture. Species, density, log size, stove settings and airflow also affect heat output and burn time.
A properly seasoned log can outperform kiln-dried wood that has become damp after delivery. Equally, well-produced kiln-dried logs can perform extremely well. The better question is: “Are these logs genuinely dry, correctly stored and suitable for my fire?”
What should buyers look for?
- A moisture content of 20% or less
- Ready to Burn certification where it applies
- Dry-looking end grain, often with visible checks or cracks
- A supplier who can explain how the wood was dried and stored
- Covered, well-ventilated storage after delivery
- Consistent log sizing that suits the stove or open fire
Our verdict
Kiln-dried firewood can be a consistent and convenient choice. However, when naturally seasoned logs have been properly split, given enough time and barn-dried with good airflow, we believe they are the superior all-round firewood: dependable heat, less intensive processing and a product shaped by patience rather than speed.
Whatever you buy, keep it dry and well ventilated. Good firewood deserves good storage.
What do you think? Join the debate below and tell us whether you prefer kiln-dried or naturally seasoned firewood.
Order barn-dried, naturally seasoned logs through Quick Order
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