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The Dangers of a Wood Burning Fire A wood burning fire can be a comfortable and enjoyable experience. However, it can produce toxic combustion products. It is important to learn about the process of burning wood and how to properly use your fireplace. Choose mature logs or kiln dried logs. Seasoned logs are less moist and burn hotter than unseasoned logs. Burning Time Burning wood to produce heat is a traditional and effective method of heating. However, this kind of fire can release indoor and outdoor emissions that can be hazardous to the health of humans. The use of a properly-designed fireplace can help reduce the negative effects of burning wood. The time it takes to burn a woodfire is dependent on the temperature. The temperature of the wood fire will affect the amount of smoke released and the amount of carbon monoxide released. Carbon monoxide can make it difficult for occupants to get out of a burning structure when the levels are too high. It is essential to maintain the temperature of the fire at a lower level the fire in order to prevent this. In the initial stage of a wood-fire, volatile gases like methane and Methanol are released from the cellulose of the wood. These gases are combustible and non-combustible, based on the moisture level and the pyrolysis temperature of the sample. The temperature of pyrolysis rises to 350 degrees Celsius. At this point the cellulose begins to break down and forms charcoal and tar. This process is known as wood pyrolysis. In addition to volatile gases, burning wood releases a variety of other toxic combustion products, such as dioxins and polyaromatic hydrocarbons (PAHs). PAHs are known to cause cancer and other diseases in humans and animals. They also can affect soil and water. To reduce the harmful effects of PAHs wood should be burned in a ventilated area. A wood stove that has an extended burn capacity can maintain visible flames while using a minimum amount of fuel. This technique involves laying down wood with lighter kindling and heavier pieces to prevent the fire burning out too quickly. This method can be used for a fire to produce high temperatures, either over night or during your work hours. The duration of the wood fire is determined by several factors, including the moisture content of the wood. Dry wood will have a shorter burning time than damp wood. The absorptivity on the sample surface can also affect the time it takes to burn. Simms [59] discovered that the critical heat flux needed to ignite mahogany and oak samples was significantly lower on coated surfaces than those without. Temperature The temperature of the fire is critically crucial. It affects how fast it burns and the heat that it generates. It can also influence the risk to be burned. It also affects the amount of smoke produced. If there is wood burning stove outdoor of smoke, it may cause irritation to the eyes and throat and cause irritation, so it is recommended to avoid breathing it in. When wood burns, it releases lots of heat and can even reach high temperatures. The temperature of a fire can differ based on the type of wood that is used and the moisture content. Wet wood, like will burn at less heat than dry wood. This is due to the fact that wet wood will absorb more water and less heat. It is crucial to use dry wood and you must ensure that the wood is well-seasoned prior to burning it. When the wood reaches a high burning temperature, a significant amount of heat and ash are released. The amount of ash released will depend on the type of wood that is being burned and the heat at which it burns. Certain woods like oak and larch release very little ash. The Birch wood can produce a large amount of ash. As the wood burns, it will undergo a three-stage process known as Pyrolysis. This process starts with a chemical reaction that transforms organic compounds present in the wood into carbon dioxide and methane. The gas produced is absorbed into the air. The gases will rise when the wood is heated, and cause the wood to ignite, causing a fire that will heat the wood until it combusts. It is essential to avoid touching the wood burning fire with your naked skin because it can cause burns. Avoid touching the wood-burning fire with your naked hands as it could cause serious burns. Wearing gloves and working in an area that is ventilated will reduce the chance of being burned. Also, it is recommended to wear a protective mask when working with an open flame made of wood to avoid inhaling the smoke. Smoke Wood burning fires emit smoke that is a mix of gases and fine particles (also called particulate matter, or PM), that contains harmful air pollutant. The smoke from wood combustion could contain harmful organic compounds, such as formaldehyde and benzene, as well mineral particles like calcium, magnesium and potassium. These particles can cause variety of health problems that include respiratory diseases and cancer. When people breathe in smoke from wood they also breathe in carbon monoxide (CO), an odorless and colorless gas which can cause deadly poisoning in small amounts. The smoke that is produced by a wood fire is largely due to volatile organic compounds (hydrocarbons) which evaporate from the burning material. The smoke also contains water vapor, the byproducts of incomplete combustion (such as creosote) as well as a small percentage of unburned material, also known as ash. It is best to make use of seasoned wood in your fireplace or stove. Split logs that were stored away from the elements and allowed to dry for a time until they reach a moisture content of between 20 and 25 percent, burn less and produce less creosote. A good way to check the moisture content of a log is to hit it on two sides. Dry wood will produce an uninteresting sound, whereas the logs that are seasoned will produce a sharp sound. While the heat generated by wood fire draws air around it and the smoke and other combustion byproducts are pushed out by the chimney. If the home's ventilation system is not adequate it could mean that the chimney is not able to draw enough air and could create a back draft, which can cause the byproducts of the fire to accumulate inside the house. This can lead to the buildup of dangerous carbon monoxide, as well as flammable cinders and creosote. Smoke from wood-burning fires can be particularly harmful to older adults, people who suffer from lung or heart diseases, children, and outdoor enthusiasts. Smoke from wildfires could affect the health of older adults, people who suffer from lung or heart disease, children and people who exercise. Safety If you're using a wood burning fire, there are certain precautions to take to reduce the risk of fire-related accidents and damage. For example you should utilize a fireplace or stove screen and keep anything that is flammable at least 3 feet from it. Smoke and carbon monoxide detectors should be installed in your home to warn you when dangerous gases are detected. It is also crucial to not leave a fire burning unattended, as even a tiny spark could result in an explosion. It is also recommended to utilize a metal ash container and a shovel for removing the ashes from your fireplace or wood stove. Keep the ash away from anything that could ignite. Lighting the Fire To ignite the fire, lay down a layer of cleft and dry logs on the top of a bed of ash. Then add a layer of twigs and kindling to the pile. It is crucial to leave enough space between the pieces of wood for airflow. This will help prevent the fire from burning too fast. Add a few firelighters to provide additional assistance in getting your fire up and running. It's also an excellent idea to open a door as you begin to light your fire, as this will allow it to get the oxygen it requires to burn brightly. This is particularly crucial for modern homes, that are often well-insulated and have no natural air circulation or draft. Once the fire has started, you can add more wood pieces. But, it is important to remember that even the most seasoned hardwoods such as oak and hickory still produce lots of creosote after burning, so you should avoid burning them as much as you can. If you can, only use wood that has been seasoned or kiln dried, as this will reduce the risk of creosote building in your chimney. If you must use fresh or green firewood, you must be extremely cautious because it can create more smoke and lead to more creosote.