The Science of Combustion
Are you constantly worried about creosote buildup, carbon monoxide poisoning, and house fires? Well, if you know the basics in the combustion process, you wouldn’t have to.
Are you constantly worried about creosote buildup, carbon monoxide poisoning, and house fires? Well, if you know the basics in the combustion process, you wouldn’t have to.
When Basic Chimney Sweep & Repair technicians come to your home for a chimney sweeping appointment, you’ll probably hear us talk a lot about byproducts, and creosote, and the combustion process. Those topics are kind of the basic building blocks of why chimney sweeping is so important — combustion in your fireplace creates byproducts, including creosote, which build up on the flue walls, affecting draft, potentially damaging your flue liner and, if left unswept, leading toward a fire hazard.
If you’ve ever wondered how the combustion process works inside your fireplace or flue, you’re not alone — we give a fireplace and chimney combustion rundown to a lot of clients, because it helps to have a sense of how things work when you’re trying to make informed decisions about the care of your chimney system.
Here are some of the basics:
Combustion, at its most basic, is burning — or, if we’re talking the dictionary definition, a speedy chemical process that results in heat and light. When we’re focused on your chimney system, by referencing combustion, we’re talking about the process of burning fuel inside your firebox — be it wood, wood pellets or gas. You start your fire or hit your gas ignition switch, the fuel burns, heat and light result, and you get what you’re looking for out of your fireplace or stove.
Heat and light aren’t all that follows, though, and as chimney technicians, our job has a lot to do with keeping up with the other stuff — namely, byproducts and draft.
Draft is the force that pulls heat and byproducts up your flue, and out of your home, so proper draft is key to your chimney’s function. It occurs in your flue because of a principle we all know well: hotter air rises, and cooler air sinks. Air always moves from an area with higher pressure to lower pressure, and aressure difference occurs while combustion is happening in your fireplace or stove — hot air rising in your flue creates a lower-pressure area below, and that pulls in cooler air near your firebox opening, and draft moves along as it should.
Issues with smoke, stains, odors and improper burning in your combustion appliance often have something to do with impeded draft. The specific culprits behind that impeded draft, though, can vary.
It could be something simple, like a failure to open your chimney damper all the way, or a lack of sufficient combustion air (that lower-temperature air getting pulled into your firebox). The latter happens a lot in homes with well-sealed energy-efficient windows and doors, and if cracking a window when you have a fire clears up the issue, you’ve found your culprit.
Draft problems could also be due to a size issue. A chimney that isn’t the correct height won’t achieve the right level of draft, and a flue that’s too big or too small in diameter will lead to draft issues, greater byproduct production and less efficient burning, among other issues,
Often enough, Basic Chimney techs find that draft issues are the result of flue liner damage. If your flue liner is cracked, or spotted with voids or gaps, it limits the force of your draft. Think of it kind of like a straw: Apply some force to an intact straw, and your drink comes right up; try with a straw that has a hole in it, and you’ll struggle and struggle with little success. That’s why it’s key to have your chimney inspected annually, and to have flue liner damage taken care of as soon as possible.
If you have any questions about combustion or draft in your chimney, Basic Chimney Sweeps is always here to help – just give us a call!
In an always on-the-go type of world people often overload their list and overlook some of the most important tasks. It’s even more important that you don’t let your fireplace and chimney be two places in your home that you do not neglect. Even though they are only used a portion of the year, they must have a annual inspection and chimney sweep to make sure that they are in safe and working order to make sure you and your family have a warm winter all year long. If you need to schedule your chimney sweep and inspection, call Basic Chimney Sweep and Repair.
When looking to hire chimney technicians, you need someone that is not only professional but CSIA certified. This means that they meet the standards set by the Chimney Safety Institute of America. These businesses can be found through a variety of ways, such as asking community members or online. For the safety of your home, you always want your chimney care to be the best.
There’s a lot of importance in having a chimney sweep. To start, they remove the built up creosotes that could potentially start a chimney fire. Creosotes can also cause a blockage where smoke will remain inside of your home. If you continue to breathe enough of this smoke in, you could develop Carbon Monoxide poisoning. Animals also cause blockages in your chimney, and a sweep will remove those as well. When doing the sweep a technician will be able to see if there are any parts the may not be in working order. What may seem as a small issue to you could potentially put you and your home in danger, even if it only a broken brick or tile. If there is a crack it will continue to grow until it is fixed. Water can then get in and form mold, and spread to the rest of your home when not taken care of. If the unit is broken it could not be only unsafe, but cost more to operate. These sweeps should be done annually at the beginning of the season by a CSIA professional.
Increasing Energy-Efficiency
Feel like you haven’t been getting the most out of your fireplace lately? Is your fire not quite warming you up? Are you hassled with smoke? Going through firewood a little too fast? An energy efficient fireplace is one that is performing its best. Don’t settle for less! At Basic Chimney, we’re huge supporters of efficiency. Below are some diagnostic tools to help you get maximum performance from your fireplace. And remember, one of the best things you can do for your fireplace is to maintain the chimney’s annual cleaning.
Can’t quite get warm?
If your fires aren’t heating your space as well as you’d like, you should consider changing the type of wood you’re using. If your wood isn’t seasoned or is damp, it takes a lot more energy from the fire just to stay burning, because it has to work so hard just to warm that water up in order to burn the wood. We always recommend burning seasoned, dry hardwoods. Hardwoods don’t necessarily burn at higher temperatures, but they do burn more slowly, which will help you get a nice, hot fire that burns for longer. Another trick to heating up that fire is to have tempered glass doors installed. This minimizes the fire’s consumption of warm air from your home.
Smoke gets in your eyes.
Yeah, it’s a beautiful song, but it’s not a beautiful thing. Not only is smoke a pest to the eyes and throat—it’s also dangerous for your health. If your fires are smoky, you might have a little work cut out for you. Sometimes it’s a quick and simple fix, and sometimes it takes a little trial and error. Follow these steps to determine what’s causing the problem:
My firewood is disappearing before my eyes!
It isn’t magic, either. Just like I mentioned above, hardwoods will burn at a high and consistent temperature if they are dry and seasoned. They also burn longer, which will get you more for your money. Remember, though—you’ll still want to keep a little soft wood on hand for kindling, since you want something that will burn a little faster to get the fire going.
Tried it all and still no luck? Give us a call and we’ll help you get well on your way to a healthy, clean fireplace that will keep you warm for years to come.
Choosing Between a Factory Built Fireplace and a Masonry Fireplace for Your New Home
Building a new home can be a very exciting endeavor but it comes along with many important decisions. In addition to choosing siding and paint colors, new homeowners must decide whether they want a factory built fireplace or a masonry fireplace in their new homes. There are pros and cons to each but, in the end, the decision must be made based on personal preference and a few practicalities.
When choosing a fireplace for a new home, most homeowners are going to be concerned with safety above all else. The good news is that the safety factor will not play into the decision between a factory built or masonry fireplace. Both are equally safe if they are used properly and if foreign objects are not burned in them. In the case of a factory built fireplace, it is important that it is installed exactly according to the directions in order for it to function safely. And for either kind, it is essential to have the chimney swept and inspected once a year.
No matter which option a homeowner goes with, the fireplace will require the same basic maintenance in order to function safely. This means that the fireplace should be inspected and cleaned each year by a professional chimney sweep. The homeowner should also clean out the chimney after each use, leaving just a bit of ash underneath for insulation. If these simple steps are followed, there should be no major issues with either type of fireplace.
One thing to consider in terms of choosing a fireplace is that a masonry fireplace is likely to last longer than a factory built option. This is simply because the material used, brick, is more durable and longer lasting than metal, which is used in most factory built fireplaces. However, homeowners who do choose factory built fireplaces can typically go for many years without having to replace the fireplace or any of its parts.
On the other hand, a factory built fireplace is less expensive than a masonry fireplace. This is, again, because metal is a less expensive material than brick, especially in the quantity used for building a fireplace and chimney. If new homeowners are on a budget and trying to save money, a factory built fireplace is one way that they can accomplish that. They will still be able to enjoy all of the benefits of having a fireplace in their home on a cold winter night.
In many cases, the choice simply comes down to the homeowners’ sense of aesthetics. With a masonry fireplace, the area surrounding the hearth and the chimney will be made of brick. Those who go with a factory built option will have a structure that is made almost entirely out of metal. Some homeowners prefer the look of one to the other and allow that to be the final factor in making their decision.
Choosing a fireplace for a new home is a big decision because the fireplace will likely be used every day during the cold weather season. When choosing between a masonry fireplace and a factory built fireplace, keep in mind that both options are equally safe if they are properly cleaned and maintained. However, it is also important to remember that a masonry fireplace may last longer, while a factory built fireplace is more affordable. Those who have trouble making a choice can simply decide whether they prefer the look of metal or brick in their home.
What Is That Odor Coming from My Chimney?
Anyone who uses his or her chimney on a regular basis has most likely noticed an odor coming from it at one time or another. In order to know what to do about the problem, it is necessary to know exactly what is causing the problem. There are many different factors that may lead to smells coming from the chimney. Most of them can be easily fixed with some basic chimney maintenance.
If a chimney is not properly protected, it becomes the perfect place for birds and rodents to set up their homes. Once they have set up camp, there is any number of ways that odors can find their way into the home. Animal waste will eventually accumulate in the chimney as well as their fur and debris from their nests. A simple way to fix this problem is to install a chimney cap that will block animals from entering the chimney in the first place.
Another common cause of chimney odor is the accumulation of water in the chimney. Excess water often gets into the chimney in the way of rainfall or snow. It becomes a breeding ground for mold and bacteria, which not only smell unpleasant but can also be quite dangerous. Just as animals can be kept out with a chimney cap, this simple structure is a great way to keep excess water from entering the chimney and starting trouble.
When someone burns wood or coal that has been treated in their fireplace, it leaves behind creosote, a combination of chemicals. There are many side effects to a build up of creosote. For example, anyone who is exposed to it is at risk for skin and eye irritation as well as respiratory illness. However, creosote also leaves behind an unpleasant smell, which will eventually enter the home.
Of course, it is important for homeowners to keep in mind that some odor coming out of the chimney is perfectly normal. Whenever there are treated materials burning, there is going to be some ash and soot left behind. This is not something to be concerned about unless it is causing a disturbance in the home. If the smell becomes overwhelming or is irritating family members with allergies, it should be addressed immediately.
The best way to handle chimney odor and to avoid it completely is to have the chimney professionally cleaned at least once a year. This can be done at the start of fireplace season or at the end, it doesn’t matter — as long as it gets done. A professional chimney sweep will have the tools and skills to completely clean the chimney while, at the same time, checking for evidence of any problems that may occur in the near future.
Chimney odor is a perfectly normal part of using a fireplace and chimney. However, there are some instances in which the odor becomes overwhelming and needs to be taken care of by a professional. This may be caused by the accumulation of creosote, excess water, or even by animals that have set up their homes in the chimney. Some of these situations not only cause an unpleasant smell but also put the family at other risks, such as house fire or illness. Here at Basic Chimney, we have your safety and comfort in mind with everything we do.
The Basics of Maintaining Your Prefabricated Fireplace.
A prefabricated fireplace is a great option for someone who does not have a masonry fireplace included in the structure of their home. However, some homeowners do not realize that these structures require just as much attention and maintenance as their counterparts. In order to safely enjoy a prefabricated fireplace, it is absolutely necessary to follow a few important guidelines for maintenance.
When purchasing a prefabricated fireplace, it will be necessary to also purchase a chimney and a cap. What people must keep in mind is that the manufacturers create all three of these pieces to be used together. It is absolutely necessary to only use the chimney and cap that are intended to go with the particular fireplace. Mixing and matching will affect not only the efficiency but also the safety of the entire system and should be avoided at all times.
As with any fireplace, it is necessary to keep a prefabricated fireplace clean in order to have it function properly. Be sure to remove any excess material left in the fireplace, but you will need to leave about one eighth of an inch on the bottom for proper insulation. It is best to double-check the cleanliness of the fireplace before starting a fire and then to clean it thoroughly after putting the fire out.
Some people think that their prefabricated fireplace is not vulnerable to the same type of problems as a masonry fireplace. However, this is not the case and it is important to provide some of the same maintenance. For example, birds are just as likely to make their nests in a prefabricated chimney as they are in a masonry one. Be on the lookout for these issues and resolve them as quickly as possible.
In general, it is necessary to monitor normal wear and tear on a prefabricated fireplace a bit more closely than a masonry option. Since they are made out of materials that are not quite as durable as, for example, brick, they will not stand up to as much stress. In order to make sure it is functioning properly at all times, inspect the fireplace regularly and call a professional immediately if there are any unexplained changes.
Although a prefabricated fireplace differs structurally from a masonry fireplace, many of the same safety and maintenance rules apply. For example, it is important to only burn properly dried wood and to not put any foreign material into the fireplace. It is also important to make sure the chimney is clear of obstructions to avoid smoke in the home. Failure to follow these simple rules can cause serious safety hazards.
A prefabricated fireplace is a great option for anyone who does not have a fireplace attached to their home. In order to use it safely, it is important to remember that many of the same safety and maintenance rules apply to a masonry fireplace. In fact, they require a bit more attention because they are not built to withstand the same normal wear and tear as masonry fireplaces. Be sure to only use them with the appropriately compatible pieces, such as the chimney and cap. Keep the fireplace clean at all times and keep in mind that it can have the same issues as other fireplaces, such as dangerous obstructions in the chimney.
“Renovating your firebox” is taking on more meaning as the range of decorative choices expands. The insertion of them into the realm of interior decor is also increasing their popularity with homeowners. These days, your fireplace can have the look of a masonry fireplace without the hassles of a chimney. You can also replace the panels of your firebox… or you can undertake the traditional renovation of a masonry fireplace and do some repointing.
As more pre-fabricated units reach the natural ends of their lives, their replacement offers a great opportunity for renovation. Furthermore, with so many options available, even people with masonry fireplaces are choosing inserts for their fireboxes. Some homeowners are realizing that what they love is a warm glow, not a roaring fire and the masonry chimney it requires.
Redecorating with Firebox Renovation
The result of all that is an explosion of ‘firebox renovation’, and manufacturers respond with more and more options. What can sometimes be forgotten in all the ‘redecorating’ is that most of these pre-fab units are “decorative appliances”! Whether it is a plug-in electric fireplace, a vent-less gas fireplace, or an insert, it is not designed or constructed for a roaring fire!
Another important thing to remember about fireplace inserts — to make it a safe renovation — is that proper installation is required. Basically, the firebox has to fit the flue, which is why pre-fabricated fireplaces come with pre-fabricated chimneys. They are designed as a system. They are interdependent, if you will.
That does not mean you cannot put a pre-fabricated fireplace system under a masonry chimney. It just means that much more is involved than plugging in a portable fireplace, and the ‘renovation’ needs inspection. A good idea might be to ask the certified sweep who does your annual chimney inspections how the two can be organized to coincide!
The reasons you cannot get a fire started in your fireplace are obviously different for different kinds of fireplaces. If it is a gas fireplace, check to see that the valve is open and that gas is being supplied to the fireplace. If it is a wood burner, problems can vary from unseasoned wood to insufficient kindling to an improperly built fire.
Obviously, a gas fireplace will not light if it is not receiving any gas, so confirming the gas supply is the first thing to do. There is usually a valve either at the bottom of the fireplace or on a wall switch that turns the gas on and off. This allows gas to flow from the main line through the pipe into the fireplace and should be turned off when the fireplace is not in use.
Another thing to check is the pilot light, which may have been blown out by wind or a sudden downdraft. If that is the case, restart it by turning the control knob counter-clockwise to the Pilot position. Click the red button until the pilot lights, hold it in for a minute, and then turn the knob to its “ON” position. Pilots are generally left on throughout the winter season but shut off when the fireplace is not in use to avoid their unnecessary expense.
If the pilot ignites but will not stay on, there may be a problem with the thermo coupling, which senses whether a pilot flame is present. If the pilot stays on but the fire will not start, thermo piling may be to blame. Thermo piling uses the pilot flame to produce an electric spark that opens the gas valve. As this is a tiny spark, it is also important for the fireplace and gas logs to be clean, as even a little dust can block the valve.
If your fireplace is wood burning and the wood is dry, you may simply need to rebuild the fire. Newspaper, plenty of kindling, sticks and wood pieces, all topped with larger logs, should be placed on the grate in that order. It needs to be possible for air to flow through and around the pile since fire needs oxygen to burn, so do not pack it too tight.
Tired of sweeping out ash, and conscious of the added expense of wood burning fireplaces, many homeowners are choosing to convert to gas. More efficient and less trouble, glass fronted gas fireplaces keep warm air in the house and cold air out when they are not in use. Cleaner, safer, and more economical, gas fireplaces can be a better option, and can provide the same ambience as a wood fire without the smelly smoke and combustible by-products.
Definitely a job to be handled by chimney professionals, perhaps the most difficult part of a fireplace conversion is getting gas to it. A separate gas line has to run from the meter to the fireplace, with flex line, cutoffs, and a sealer at junctions. Furthermore, air has to be bled from the lines and the natural gas has to be pressurized to state-dictated levels. The farther the fireplace is from the gas source, the more complicated the task.
Prior to the conversion, the chimney should also be cleaned by a professional chimney sweep. He can insure that nothing is blocking the chimney and deal with any creosote that has accumulated inside the flue. Maintenance will be much easier with gas logs than with a wood fire, but the usual concerns about nesting birds and critters still apply.
The most important decision for homeowners to make is the type of gas fireplace they wish to install. Both vented and vent less gas fireplaces are available, each with drawbacks and advantages. Municipalities may regulate this choice, sometimes requiring vented fireplaces, which reduce the chances of carbon monoxide poisoning.
An unvented gas fireplace does not lose heated air up the chimney so it does a better job of warming the room. However, an unvented gas fire can only burn for a few hours at a time, since both moisture and exhaust gases are given off and build up. Although they are more costly, vented fireplaces produce prettier fires and are still energy efficient, sealing heat behind glass doors and often blowing it into the room.