Firewood advice

The Clean Air Act and burning wood at home

What UK households need to know about Smoke Control Areas and burning solid fuel legally and cleanly.

Last updated August 2026 · William Alexander Logs

A member of the William Alexander team with a bag of kiln-dried logs

Smoke Control Areas, in plain terms

Large parts of the UK, particularly towns and cities, are designated Smoke Control Areas under clean air legislation. Inside a Smoke Control Area, it is an offence to emit smoke from a chimney unless you are burning an authorised ("exempt") appliance, or burning an authorised fuel, which includes wood that meets the Ready to Burn moisture standard when used in an appropriately certified appliance. The rules are enforced by local authorities, and you can check whether your address is in a Smoke Control Area on your local council's website.

What this means in practice for most households

If you burn wood in an open fire or a wood burner, the simplest way to stay on the right side of the rules, wherever you live, is to burn only wood that meets the Ready to Burn 20% moisture standard, and to make sure any wood burning stove you install is either exempt-appliance approved or an Ecodesign-compliant model if you are inside a Smoke Control Area. Burning dry, certified wood is not just a legal safeguard: it is also the single biggest thing you can do to cut the smoke and particulate pollution your fire produces, regardless of where you live.

Why moisture content is central to the rules

Wet or unseasoned wood is the main cause of visible smoke and higher particulate emissions from domestic fires. That is precisely why the legal definition of authorised firewood is built around the 20% moisture threshold rather than the type of wood: a well-seasoned or kiln-dried log burns far more cleanly than a freshly cut one of exactly the same species.

How our firewood fits in

Every bag of our firewood is kiln-dried below 20% moisture and certified under Woodsure Ready to Burn, certificate WS721, so it meets the moisture standard behind the Smoke Control Area rules wherever you live in the UK. We are not able to advise on your specific appliance or address, so if you are unsure whether your home is in a Smoke Control Area or whether your stove is compliant, your local council and the appliance manufacturer are the right places to check.

Quick questions

A few more questions.

How do I find out if I live in a Smoke Control Area? +
Check your local council's website; most UK councils publish a Smoke Control Area map or postcode lookup tool.
Can I still use an open fire in a Smoke Control Area? +
Only if you burn an authorised fuel, such as Ready to Burn certified wood, or if the appliance itself is on the exempt list. Rules vary by appliance, so check with your council or the appliance manufacturer if you are unsure.
Does this guide count as legal advice? +
No. This is a general explanation to help you understand the topic. For anything specific to your address or appliance, check with your local council, which enforces Smoke Control Area rules locally.
Related

More guides.

Firewood advice

What is Woodsure Ready to Burn?

The UK's official certification for firewood that is genuinely dry enough to burn safely, cleanly and legally, and how to check it for yourself.

Read the guide →
Firewood advice

Firewood moisture content explained

The single number that determines whether your fire lights easily and burns clean, or smoulders and smokes.

Read the guide →
Firewood advice

Kiln dried vs seasoned firewood: what's the difference?

Both can burn well. The difference is how the moisture is removed, and whether you can trust it before you strike a match.

Read the guide →

Ready when you are.

Kiln-dried, Woodsure Ready to Burn certified firewood and peat-free compost, delivered on the day you choose.