Fireplace Safety Tips

October 17, 2019

While this post is not really within the scope of our Home Watch Service a lot of our clients have vacation homes that do have fireplaces. We are always interested in keeping our clients and their property safe so we thought this would be a good area to cover in our Home Watch News & Tips section.

Fireplaces might add the ambiance of warmth and tranquility to your home, but that cozy, crackling glow also conceals an ash pan of potential problems. Cinders, ash, volatile resins and creosote that are not routinely cleared from the fireplace can pose a dangerous fire hazard. Plus, what do you do if you don't want to have a fire burning? How can a homeowner maintain their fireplace correctly and safely while preventing their heating dollars from going up in smoke?

Because caring for chimneys and fireplaces can be both complicated and dirty, we've put together a list of tips to keep your home warm and safe.

Fireplace Care Tips

The first place to prevent problems with your fireplace or wood stove is to select the right kind of wood. Use dried and well-seasoned wood that burns hot and completely enough so that it produces less creosote and carbon monoxide.

How to Choose the Right Fuel for your Fireplace

  1. Don't use chemicals. Fire and chemicals don't mix! Never use gasoline, kerosene, or charcoal starter. Don't burn painted, pressure-treated, or plywood. These can give off a whole slew of toxic chemicals that could enter your living space.
  2. Avoid using wet, rotten, diseased, or moldy wood. Only start fires with dry kindling, newspaper, or pine cones. Pine cones contain natural resins that burn quickly and are hot enough to ignite firewood. Dry wood also burns more completely than wet.
  3. Check the moisture content. Moisture content determines how much creosote will form in your chimney. Use wood that has been seasoned for 12 months and has a moisture content of less than 20%. Firewood moisture meters are available from most home centers.
  4. Only use local firewood.This prevents the spread of tree diseases and insect pests to your neighborhood. The emerald ash borer has killed 50 million ash trees in the US just by being moved around in firewood.
  5. Store your wood properly. When you buy firewood, store it for use next year. That way, you can be sure it's properly dried. Store your freshly cut and stacked firewood off the ground. Keep it covered on top but leave the side open for air to circulate.
  6. Choose the right wood. Different types of wood burn differently. Oak and other hard woods generally burn long and hot. Soft woods, like pine, will burn fiercely hot but very fast. If soft woods are not properly dried, the water content in their resins can release high amounts of creosote.
  7. Keep your fireplace clean. This allows better air flow and cleaner combustion. Wood burning fireplaces emit 28 lbs of particulate emissions (soot and ash) per MMBtus of heat output.
  8. Always keep a fire extinguisher handy. A single spark can start a house fire —so it's best to be prepared.

Chimney Care Tips

Chimney caps prevent leaves, debris, and animals from getting into your chimney and blocking it. They typically have some form of mesh that keeps debris out, lets smoke escape, and also arrests sparks to prevent them from starting fires outside your home. At least once a year, check over the chimney cap.

How to Check Your Chimney Cap

  1. Make sure the chimney cap is securely attached to the chimney.
  2. Make sure the chimney cap's mesh covering is intact and that no debris or animals are able to get through it.
  3. Cut back any tree limbs overhanging your chimney. Apart from the obvious fire hazard but they can also knock into the chimney during storm and damage it or the chimney cap.
  4. Check the chimney masonry. Loose or cracked brickwork should be repaired before it gets worse. You might want to contact a professional bricklayer.

Recently cracked and discolored masonry or a warped chimney cap are signs of a chimney fire. Creosote flakes or ash are strong indicators that creosote build up in your chimney has reached a danger point. Creosote fires in fireplace flues and chimneys can reach 2000°F — hot enough to easily melt metal liners, fracture brickwork, and spread flames into your attic.

If you discover evidence of a chimney fire, you'll want to get you chimney inspected and cleaned by a professional chimney sweep as soon as possible. Trained chimney sweeps can show you how well your fireplace or wood stove is working and recommend how to get the most heat out of it safely.

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