‘Tis the season for enjoying cocoa in front of a roaring fire, while the bitter, blustery wind blows outdoors. In order to enjoy that fireplace, though, it requires regular maintenance to ensure it operates safely and efficiently. Left to its own devices, a poorly maintained fireplace can diminish the air quality in your home. Add that to the fact that it’s a fire hazard. Here’s what you need to know to make the most out of your fireplace, both for your well-being and enjoyment.
Most wood-burning fireplaces are built of heavy masonry materials, set atop solid foundations and fitted with masonry chimneys. Others are factory built and feature triple-walled, stainless steel chimneys. A masonry fireplace’s firebox features heat-resistant firebrick, while the chimney’s interior is lined with heat-resistant, square clay “tiles.” For safety reasons, the visible part of the chimney, hearth and fireplace, is constructed of non-combustible materials, such as stone, brick or tile. Sometimes, a chimney is capped with a metal or stone slab, which keeps rain and snow out. It also features a screen up top to keep birds and animals out of the chimney — and your house. The screen is important for another reason, too: It contains sparks and embers that reach the top of your chimney.
Typically, fireplaces also feature a screen or mesh guard to prevent embers from popping into the house when a fire is burning. Fireplaces may also have glass doors. These should remain open when a fire is burning and closed when there is no fire, or when a fire is reduced, in order to contain embers. Additionally, a small, cast-iron door (or damper) with a handle sits just above the fire. This leads to the chimney and should always be closed while the fireplace is not in use. However, it must be opened each time a fire is lit.
After each fire, remove ash once the fire is completely out and the ashes are cold. Worried about the mess? An ash vac can help. Not sure what to do with all that residual ash? It can be sprinkled on flower beds, as it’s a great source of nutrients for plants.
It’s important to note that sweeping your chimney is essential. And don’t forget to schedule an annual inspection with a certified chimney sweep, as your chimney will get coated with soot and creosote when used. Left unchecked, the coating builds up and can catch fire. On top of being an extremely dangerous fire, it’s one that can seriously damage your fireplace because everything above the damper is only meant to withstand hot smoke and gases from the fire — but not heat from the actual fire.
While an inspection and cleaning is an annual affair for sure, it should always be done when creosote build-up reaches 1/8-inch or more. Plan on scheduling the cleaning at the end of the season, before summer arrives. When the weather is warm and balmy, humidity in the air can combine with creosote, forming acids that have the potential to damage masonry and cause noxious odors.
When a chimney sweep cleans your chimney, they’ll likely lay a drop cloth in front of the hearth and wear a respirator so they don’t inhale harmful soot and creosote dust. They’ll inspect your fireplace, and look for cracks in the firebox, chimney or liner, as well as loose or missing bricks or mortar. The chimney sweep will also make sure the damper is properly positioned and working correctly; ensure your chimney cap is in good repair, and make sure the chimney itself is structurally sound.
You may note that a professional uses metal or plastic chimney brushes and a vacuum to remove soot and creosote from the interior walls of your chimney and damper ledge. Depending on the condition of your fireplace, they may also use a chemical cleaner on your fireplace.
Looking for additional ways to care for your home? Check out our blog — it’s loaded with ideas to help your house stay in tip-top shape — and feel like a home.