Our Company Blog

How Winter Weather Affects Your Chimney

Weather experts have forecasted a winter just as frigid as last year’s, which has everyone thinking about ways to stay warm. For some, that means turning on the heat in the house or lighting a toasty fire in the fireplace. To help the fireplace and chimney continue keeping us warm, they need regular care themselves, particularly before the winter weather sets in. In fact, winter weather does more damage to the chimney than any other season.

Many people believe chimneys are built to endure the winter elements and only need the occasional sweep to function properly. Chimneys do hold up remarkably well to the weather, considering they experience it 24 hours a day, but they cannot survive indefinitely without a little help. The main concern for chimneys in the winter actually comes from water damage, which often surprises people.

Masonry chimneys, in particular, can suffer extensive and costly damage as a result of water exposure in the winter. Materials such as brick, concrete, and mortar are used to build a masonry chimney and they all have a porous texture. This means these materials readily absorb any water that settles on its surface. Although water alone does relatively little damage, when winter weather drags temperatures below freezing, the trouble starts. In sub-freezing temperatures, water undergoes a freeze and thaw cycle in which it continuously contracts and expands. The water inside the masonry materials also goes through this cycle and expands the bricks and concrete right along with it. Water can cause severe and costly damage to a chimney, particularly during to masonry chimneys. After several seasons of this constant motion, the materials start to degrade and lose strength. The damage can even extend to cracking or collapse.

If water has a chance to seep inside the chimney, it will happily cause damage there, as well. A metal flue lining can rust after repeated water exposure, and this leads to cracks and holes in the lining. Damaged flue lining does not effectively protect the house from the heat of the fire and the water leaking into the chimney. Eventually, this can lead to an unintentional house fire or to further water damage in the house. Water damage may come in the form of a rusted damper, which inhibits the proper ventilation of the smoke, or may even appear as ugly water stains on the walls or ceiling around the fireplace.

Fortunately, some simple and cost effective fixes can prevent all of this expensive damage. At the next chimney sweep and inspection, ask the chimney specialist about the application of a special sealant to the outside of the chimney. A chimney cap or chimney crown repair or replacement can help keep water out of the chimney and house, too. The chimney specialist can provide and install these fixtures for you upon request. With winter closing in, the roof is going to start icing up, soon making it too dangerous for the chimney specialist to access the chimney, cap and crown. Therefore, you should call now to schedule an appointment to have your chimney protected this winter. If you live in the area of Suffolk County on Long Island, contact Chief Chimney Services, Inc. for a professional consultation.

Proper Use of a Wood-Burning Appliance

Winter is closing in fast, seeing as much of the country has already experienced the first snowfall of the season. With forecasts predicting a winter just as brutal as the last, people are thinking hard about how to stay warm. Jackets, hats, scarves, and gloves will suffice for being outside, but keeping warm inside requires something different. For homeowners utilizing wood-burning appliances, like stoves, fireplaces or furnaces, now is the time to start stocking up on fuel before it becomes too scarce.

Types of Wood to Burn

Before even considering what species of tree you should choose to burn in the fireplace, the first trait of firewood to consider is its dryness. Dry firewood has gone through a “seasoning” process, meaning it has sat inside and been allowed to dry out for a set amount of time. Some wood only needs six months to season, while denser varieties can require up to two years to fully season. If the wood you bought was stacked outside, it likely contains a high water content, and that sets you up for cool, smoky fires.

The next factor to consider is the hardness of the wood. Do hardwoods or softwoods burn better? Naturally, that depends. Hardwoods, like oak, maple, and hickory, burn very hot and for a long time. These woods also create a hot bed of coals to increase the temperature and longevity of the fire. On the downside, they do not light very easily. Softwoods, on the other hand, light quickly and make good kindling. They do not serve well for long-term fires, though, because they burn fast and at lower temperatures. In essence, a good mixture of the two types of wood should meet your wood-burning needs.

Along with good types of wood to burn, you also need to know what not to burn. As discussed, wet wood is a poor choice. Much of the fires energy goes toward boiling the water instead of producing heat, which wastes your money. Also, do not burn paper or other thin materials because they burn very fast and hot, and this can damage parts of your appliance or chimney. Of course, avoid burning synthetic materials, including plastics and foams, because they release harmful materials into the air.

How to Burn Properly

Everyone with a fireplace has at least a general idea of how to start a fire, but many people do not know how to start a fire well and keep it going efficiently. First, you need to open your damper to allow the fumes to escape once the fire is lit. If the damper is low in the chimney, allow it to sit open for a few minutes before lighting up to let the flue warm up slightly. When starting the fire, start is small so it does not consume oxygen too quickly and extinguish itself. If the fire seems to sputter after burning for a few minutes, the oxygen concentration might be too low. Try opening a window or letting the fire shrink in size.

For more information and tips on proper use of a wood-burning fireplace, stove, or furnace, contact Chief Chimney Services, Inc.