Log burners have a reputation for being simple to install. They’re not, and that’s exactly why so many end up installed incorrectly — sometimes dangerously so. This is a corner of the trade most gas engineers don’t understand properly, because it isn’t gas work. It’s a different discipline, with its own building regulations, and it’s one John has specialised in for over a decade.

Yes, It’s Notifiable Work

Installing a wood burning stove is covered under Part J (Document J) of the Building Regulations — the section covering combustion appliances and fuel storage systems. This isn’t optional paperwork you can skip because it’s “just a stove.” Building control needs to know the work has happened and meets the required standard, one way or another.

The Two Ways to Get This Signed Off

You’ve got two routes to compliance:

A HETAS Registered Installer self-certifies the work. If the installer holds the correct HETAS registration for the category of work being carried out, they can certify it themselves, without you needing to separately apply to your local authority. This is the route most homeowners actually want.
A Building Notice through your local authority, if you’re not using a HETAS-registered installer for that category of work. This means a building control inspection, more time, and more hassle.

What Building Regulations Actually Require

Clearances from combustible materials — walls, floors, and furniture all need safe clearance from the stove itself, not just “roughly far enough.”
The hearth — a non-combustible hearth extending a minimum distance in front of and to the sides of the stove, sized correctly for the appliance.
The flue — correctly sized for the specific stove, properly insulated where required, and extended to the correct height above the roofline.
Ventilation — permanent ventilation openings sized to the appliance, so combustion air can actually reach the fire properly.
A carbon monoxide alarm — a building regulations requirement whenever a solid fuel appliance is installed, full stop.

Twin-Wall Flues and Existing Chimneys

Not every installation uses an existing masonry chimney. Twin-wall flue systems are common where a property doesn’t have a suitable existing chimney, or where a chimney needs supplementing or replacing — but these still need to be specified and installed correctly for the specific stove and building, not treated as a generic off-the-shelf fit.

Why This Matters More Than People Expect

None of this is bureaucracy for its own sake. A poorly installed flue or insufficient ventilation is a genuine carbon monoxide and fire risk, not a theoretical one. If an installer can’t clearly explain why your flue needs to be a particular diameter or height, that’s worth asking more questions about before they start.

See our Log Burning Stoves page for what’s included in a supply-and-install job, or Get a Quote to get a proper survey booked in.