Before You Strike a Match: Fuel, Air and Safety

A wood burner rewards a little preparation. Before you reach for the matches, check three things: your wood is dry, your air controls are open, and your chimney is clear. Wet wood is the single biggest cause of a smoky, sulky fire that refuses to draw. Look for logs with a moisture content below 20 per cent — an inexpensive moisture meter takes the guesswork out of it. Kiln-dried hardwood such as ash, oak, birch or beech gives a long, steady heat, while softwoods burn fast and hot but leave more residue behind.

You will need a small kit close to hand:

• Seasoned or kiln-dried logs — roughly 25 to 30cm long, split so they are no thicker than your forearm.
• Kindling — dry sticks about the thickness of a pencil to a finger, around 20cm long.
• Natural firelighters — wood wool and wax cubes are cleaner and more reliable than newspaper, which burns too fast and sends ash floating up the flue.
• A long lighter or taper — so you are not leaning into the firebox.

Give the flue a quick warm-through by holding a lit taper near the open door for a few seconds. This starts a gentle draught upwards and discourages smoke from spilling into the room.

Laying the Fire: The Top-Down Method

Most beginners pile kindling into a pyramid and light the bottom. That sends smoke up a cold flue before the chimney has warmed, which is exactly when a room fills with haze. The top-down method reverses the arrangement, and it is the single best habit a new wood burner owner can learn.

Step one: Place two small logs side by side on the firebox floor, leaving a gap of a few centimetres between them. The gap lets air move underneath the fuel.

Step two: Tuck a firelighter into that gap, then lay a second firelighter at right angles just behind it if your firebox is wide.

Step three: Build a criss-cross or log-cabin stack of kindling above the firelighters. Keep the pieces loose — air needs to move between them, so resist the urge to pack them tightly.

Step four: Add two or three slightly larger split logs on top of the kindling, again with gaps for air. The fire will burn downwards through the stack, warming the flue steadily as it goes.

Leave the ash bed alone if it is around a centimetre deep. It insulates the base of the fire and helps the next one catch.

Lighting the Fire and Getting It Going

Open the primary air control fully and, if your stove has one, open the secondary air control too. Light the firelighters and close the door but leave it just ajar — a gap of a centimetre or so — for five to ten minutes. This gives the fire plenty of oxygen and helps the flue reach working temperature quickly.

Stay with the stove during this stage. You are looking for bright, lively flames rather than a slow smoulder. If the fire looks sluggish, open the door a little wider rather than adding more fuel. Once the kindling is well alight and the larger logs have caught, close the door properly and adjust the primary air down. Many stoves run best with the primary closed and the secondary air providing the main supply, which also feeds the airwash that keeps the glass clear.

Building Up to a Steady Burn

Add logs one at a time rather than filling the firebox in one go. Two or three medium splits usually give more heat and less smoke than a single huge log. Place them so air can circulate around each piece, and avoid letting fuel touch the glass.

A steady burn has several signs: flames that are orange-yellow and active, a glass door that stays largely clear, and little or no smoke from the chimney. If the fire starts to die back, open the air briefly to revive it before adding more wood. Raking the ash gently with a poker can also wake up a tired bed of embers.

Try not to overload the stove. A firebox crammed to the top starves the flames of oxygen, cools the flue and produces exactly the kind of thick smoke you want to avoid.

Keeping the Smoke Down

Visible smoke means incomplete combustion — you are losing heat and money up the chimney, and you are sending tar and creosote into the flue. The main culprits are wet wood, a cold chimney, closed air controls and a fire left to smoulder overnight.

• Burn hot, not long. A bright fire for a few hours is cleaner than a damped-down fire all evening.
• Use dry fuel only. Never burn painted, treated or driftwood, which can release harmful fumes.
• Check your smoke control area. If you live in one, you must burn authorised smokeless fuel or use an exempt appliance.
• Watch the weather. On still, mild days the flue can struggle, so keep loads small and air open.

Safety Habits to Keep

Fit a carbon monoxide alarm in the same room as the stove, test it monthly and replace it as the manufacturer advises. Have your chimney swept at least once a year — more often if you burn regularly — by a qualified sweep. Keep combustibles well away from the stove, use a fireguard around children and pets, and always let ash cool completely before emptying it into a metal container. With dry wood, a sensible layout and plenty of air, your wood burner will light easily, burn cleanly and keep your home warm all winter.