Symptoms
- Fire struggles to get going or stays smoky
- Smoke drifts back into the room instead of up the flue
- Fire seems to need constant tending to stay lit
Likely causes
- CommonCold chimney not yet drawing (common at first lighting)A cold flue has downward air pressure until it warms up enough to reverse the draft.
- CommonChimney or flue partially blocked by creosote or debrisBuildup narrows the passage and weakens draft over a heating season.
- PossibleChimney too short or capped incorrectlyA flue that doesn't extend high enough above the roofline can struggle to draw well in certain wind conditions.
- PossibleNot enough combustion air entering the roomA tightly sealed house can starve the stove of the air it needs to draw properly.
- CommonWet or unseasoned firewoodDamp wood burns cooler and produces more smoke, which can look like a draft problem.
What to do
- Use only well-seasoned, dry firewood; wet wood alone can cause smoky, weak fires that look like draft issues.
- Preheat the flue before lighting by holding a rolled, lit piece of newspaper up near the flue damper for a minute.
- Crack a nearby window slightly to see if more make-up air improves the draft, especially in a tightly sealed home.
- Check the damper is fully open while starting and building the fire.
- Look up at the chimney cap from outside (safely, or via binoculars) for obvious blockage like a bird's nest.
- Schedule a chimney sweep if it's been more than a year, or if draft has been getting worse over the season.
Tools and parts
- Rolled newspaper or fire starter
- Flashlight
When to call a pro
Call a certified chimney sweep if creosote buildup, a blockage, or chimney height is suspected as the cause.
Safety
Use caution
Never use flammable liquids to help start or boost a fire, and keep a working smoke detector and CO detector near any wood-burning stove.