Fireplace and Chimney safety guide
A crackling fire is one of the best parts of winter, and by following a few simple steps, you can enjoy a warm and cozy fire in your home. According to the National Fire Protection Association (NFPA), nearly 30% of home heating fires are caused by a failure to clean equipment—primarily chimneys.
Maintaining your fireplace isn't just about aesthetics; it’s about preventing chimney fires and carbon monoxide poisoning. Here is how to keep your hearth safe and efficient.
Schedule an Annual Professional Inspection
Even if you don’t use your fireplace every day, the NFPA recommends an annual inspection by a reputable chimney sweep prior to use. A certified chimney sweep will look for:
Creosote Buildup: A sticky, highly flammable byproduct of burning wood.
Structural Damage: Cracks in the flue liner or masonry.
Obstructions: Bird nests, debris, or squirrel storage that could block exhaust.
Flue Liners: They check for cracks in clay liners or gaps in metal ones that could allow heat to reach your home’s wooden framing.
Manage Creosote and Soot buildup
Creosote is a thick, oily, black substance formed from burning wood or coal in your fireplace. Repeated use of your fireplace without servicing causes creosote byproduct to build up in chimneys. It forms when wood smoke condenses on the cool interior of the chimney. Creosote is the leading cause of chimney fires.
The "Quarter-Inch" Rule: If you see 1/4 inch of black buildup on the chimney walls, stop using the fireplace and call a professional immediately.
Burn Seasoned Wood: Only use "seasoned" wood (wood dried for at least 6–12 months). Green or wet wood produces significantly more smoke and creosote.
Safely use your fireplace every time
Creosote is a thick, oily, black substance formed from burning wood or coal in your fireplace. Repeated use of your fireplace without servicing causes creosote byproduct to build up in chimneys. It forms when wood smoke condenses on the cool interior of the chimney. Creosote is the leading cause of chimney fires.
Always open the damper before lighting the fire and keep it open until the ashes are fully cooled.
Always use a screen around the fireplace to keep sparks from flying out.
Never use coal, charcoal, gasoline or other fuels in a fireplace.
Ensure you have working smoke and Carbon Monoxide (CO) detectors on every level of your home, especially near sleeping areas.
Allow ashes to properly cool prior to disposal. Place ashes in a covered metal container located at least 10 feet away from any structures.
Store the container outside on a non-combustible surface (like stone or concrete), away from the house. Ash can hold live embers for days.
If you have any questions regarding the safe use of your fireplace, contact the Weston Fire Marshal's office at:
203-222-2672