Top Causes of a Smoking Fireplace
Blocked flue: Birds nests, leaves, or creosote buildup can partially or fully block the flue.
Closed or stuck damper: The damper must be fully open before lighting a fire.
Cold flue: A cold column of air sitting in the flue resists the upward flow of smoke. Warm the flue by holding a lit rolled newspaper near the damper opening for 30 seconds before lighting the main fire.
Negative air pressure: Modern airtight homes can create negative pressure that pulls air down the chimney instead of up. Cracking a window near the fireplace often solves this.
Undersized flue: If the flue is too small for the firebox opening, smoke cannot exit fast enough. A smoke guard or flue extension may be needed.
Why Annual Inspections Prevent Smoke Problems
Most smoke issues are caused by conditions that develop gradually: creosote accumulation, animal nesting, mortar deterioration, or damper corrosion. An annual inspection catches these problems before they turn your living room hazy.
What to Do Right Now
If your fireplace is smoking, stop using it until a professional can assess the cause. Continuing to burn with a draft problem risks carbon monoxide exposure.
Call Eco Grizzly at (424) 258-9882 for diagnosis and repair.


