What Does Woodsure Ready to Burn Actually Mean?

If you've bought firewood in the UK over the last few years, you've probably noticed a small green logo on the bag: Woodsure Ready to Burn. It's easy to walk past it without a second thought, but this certification actually tells you something important about the wood inside — namely, whether it's dry enough to burn cleanly and legally. Understanding what Woodsure Ready to Burn means helps you buy smarter, protect your stove, and stay on the right side of UK air quality rules.

What the Certification Actually Checks

Woodsure is the UK's official certification scheme for solid wood fuels, and Ready to Burn is the specific standard aimed at householders. To carry the logo, firewood has to be independently tested and verified as having a moisture content of 20% or less at the point of sale. That's the threshold at which wood burns efficiently, produces less smoke, and releases significantly less particulate pollution than damp, unseasoned logs.

It's not a one-off check either. Certified suppliers are subject to ongoing audits, so the logo is meant to be an ongoing guarantee rather than a single test result from years ago.

Why Moisture Content Matters So Much

Burning wet wood isn't just inefficient, it actively causes problems. When damp logs hit the firebox, a large share of the heat generated goes into boiling off excess water rather than warming your room. The incomplete combustion that results produces far more smoke and creosote, which builds up inside your flue and increases the risk of a chimney fire over time.

• Lower heat output — energy is wasted evaporating moisture instead of heating your home.
• More smoke and visible pollution — wet wood smoulders rather than burning cleanly.
• Increased creosote build-up — a genuine fire safety risk if chimneys aren't swept regularly.
• Glass and flue staining — the classic blackened stove glass is often a sign of damp fuel, not just a dirty burn.

Buying Ready to Burn certified logs takes the guesswork out of all of this — you know the moisture content has already been verified rather than having to test it yourself.

Is It a Legal Requirement?

Since the introduction of the UK's Clean Air Strategy, there are restrictions on the sale of house coal and wet wood in small volumes. Wood sold in units under 2m³ generally has to either be certified as Ready to Burn or come with clear guidance on how to season it before use. Larger volumes are exempt from the labelling requirement but still need to be below the 20% moisture threshold if sold as ready to use. In practice, this means most bagged and small-load firewood sold to households in England now carries the Woodsure logo or an equivalent statement.

If you're in a smoke control area — which covers parts of Stoke-on-Trent and other towns across Staffordshire — using Ready to Burn certified fuel in an open fire or an unexempt appliance is particularly important, as burning unauthorised fuel in these zones can result in a fine.

How to Check What You're Buying

Not every supplier displays the logo prominently, so it's worth knowing what to look for:

• Look for the Woodsure Ready to Burn logo directly on the packaging or delivery paperwork.
• Ask the supplier directly what moisture content their logs are tested to, and how recently.
• Be wary of loose or unbranded "cheap logs" sold without any certification — these are the most likely to be damp.
• If in doubt, a simple moisture meter costs very little and lets you check any batch of wood yourself before it goes on the fire.

Buying With Confidence

The Woodsure Ready to Burn logo exists precisely so you don't have to take a supplier's word for it — the certification does the checking for you. It's one of the simplest ways to make sure the firewood you're bringing home will actually perform the way you expect, burn cleanly, and keep your stove and chimney in good condition over the years.

All of our kiln-dried logs are dried and tested to well below the 20% threshold before they leave us. If you'd like fuel you can trust without checking the small print yourself, take a look at our kiln-dried logs or browse our full range of wood fuel.