Category: Firewood

How Wood is a Sustainable and Renewable Fuel – Everything You Need to Know

charnwoodstoves
02 Jun 2023

Wood has long been used as a source of fuel, providing heat and energy for centuries. However, concerns about air pollution and sustainability have cast a shadow on its use as a viable energy option. By managing and choosing wood correctly, we can address these concerns and reclaim the case for burning wood as a sustainable and renewable fuel.

Air Pollution

Concerns about air pollution have cast a shadow on the use of burning wood as a viable energy option. This is an important environmental issue and it is necessary to understand its relationship with burning wood.

When wood with high moisture content is burned, it produces more smoke and harmful emissions, including particulate matter and volatile organic compounds which can have adverse effects on human health and the environment.

However, burning dry, seasoned wood with less than 20% moisture content significantly reduces these emissions, making wood-burning cleaner and more environmentally friendly. Wood that has been properly seasoned produces significantly less smoke and carbon monoxide; it also has less creosote build-up and prevents the growth of mould on the logs. The seasoning process, by removing these toxins, makes the wood much cleaner to burn.

Learn about the wood seasoning process.

 

Renewability and Sustainability

Wood is a renewable fuel source because the trees it comes from can be replanted and regrown. Trees are a part of the natural carbon cycle, absorbing carbon dioxide from the atmosphere as they grow. When burned, wood releases this stored carbon dioxide back into the atmosphere. However, as long as new trees are planted to replace the harvested ones, the carbon dioxide emitted during wood burning is effectively reabsorbed by the growing trees, resulting in a closed carbon loop.

By using sustainably managed woodlands where trees are harvested and replaced in a responsible manner, we can ensure a continuous supply of renewable wood fuel. It is crucial to support and promote sustainable forestry practices to maintain healthy forests, preserve biodiversity, and mitigate climate change.

Explore alternative sources of wood fuel, such as wood pellets or briquettes made from wood waste or by-products. These can provide a more efficient and consistent fuel source while reducing waste and promoting circular economy principles.

Explore the best firewood to burn chart in the UK here.

 

Responsible woodland management

If you have access to woodland, implement responsible management practices. This may include planting new trees, managing invasive species, and ensuring proper harvesting techniques to maintain the health and biodiversity of the forest ecosystem.

For those that don’t have access to woodland, it’s important to seek out wood that carries certification from recognised forestry programs, such as the Forest Stewardship Council (FSC) or the Sustainable Forestry Initiative (SFI). These certifications ensure responsible forest management practices and contribute to the overall sustainability of wood fuel.

Properly managed woodlands are vital to our ecosystem and our wildlife. As well as being home to many plant and animal species, they also play a vital role in water resource management – minimising flood impact and regulating water availability. Forests also play a massive role in climate regulation through carbon dioxide absorption.

 

Local Communities

Buying wood locally is a key part of responsible wood burning as it reduces the transportation emissions associated with long-distance shipping. Supporting local communities also helps boost the regional economy and encourages sustainable forest management practices.

Choosing local wood suppliers provides an opportunity to establish direct connections with producers, ensuring transparency and accountability in the sourcing process. It allows consumers to enquire about the origin of the wood, ensuring it comes from sustainably managed forests and promoting ethical practices within the industry.

 

Five Steps to Choosing Wood Correctly

To maximise the sustainability and efficiency of wood burning, here are five steps to help you choose and manage wood correctly.

1/ Source locally.

2/ Opt for seasoned wood.

3/ Look for certification.

4/ Consider alternatives, such as wood pellets or briquettes.

5/ Practice responsible woodland management.

Wood is a sustainable and renewable fuel option when managed and chosen correctly. By burning dry, seasoned wood with low moisture content, purchasing locally sourced wood, supporting sustainable forestry, and following responsible woodland management practices, we can harness the benefits of wood fuel while minimising its environmental impact.

 

Why Choose Us?

Charnwood has been committed to providing quality wood burning stoves since 1972 and we know all there is to know about wood burners and responsibly using wood as a fuel source. If you have any questions about heating your home with a wood burning stove, please get in touch.

 

How to Use Vents on Multi-fuel Stoves

charnwoodstoves
02 Jun 2023

Multi-fuel stoves offer the flexibility to burn a variety of fuels, including wood, smokeless fuels and briquettes, and are popular heating appliances thanks to their versatility and efficiency. To optimise their performance and ensure clean combustion, multi-fuel stoves use air vents that regulate the air supply.

 

What are Stove Air Vents?

Stove air vents, also known as air inlets or dampers, are openings built into the structure of a multi-fuel stove that allows controlled amounts of air into the combustion chamber. These vents facilitate the incineration process by regulating the oxygen supply, ensuring an efficient and controlled burn.

At Charnwood we have incorporated a single air control on all our multi-fuel stoves that simplify the burning process so you don’t need be concerned about adjusting numerous controls. Just pull out to burn harder or push in to slow the burn down.

 

How Do Stove Air Vents Work?

As you know, a fire needs three things to survive: fuel, heat and oxygen; this is often referred to as the “fire triangle”. Stove air vents control how much air (and subsequently, oxygen) gets to the fire. When starting a fire, you want as much oxygen as possible so the fire can light. Once the fire is self-sustaining, you want to reduce the amount of oxygen for a steady and more efficient burn.

 

Air Supplies in Stoves

The air supplies in stoves are categorised into three main types: primary, secondary, and tertiary air supplies. On a Charnwood stove all three vents are incorporated into an air box that is fitted to the base of the stove and controlled by one slider.

 

Primary Air Supply

The primary air supply is the main source of oxygen for initial combustion and it is typically regulated by a primary air vent at the stove’s base or front. Controlling the primary air supply allows users to ignite and establish a fire. Adjusting this vent allows users to increase or reduce the amount of oxygen available to the fire, influencing the burn rate and heat output.

 

Secondary Air Supply

Once the fire is established, secondary air becomes essential for complete combustion. The secondary air vents are strategically placed in the upper part or sides of the stove to introduce fresh, pre-heated air into the combustion chamber above the fuel bed. This additional oxygen helps burn off any unburned gases, reducing emissions and promoting a cleaner, more efficient burn.

 

Tertiary Air Supply

The tertiary air supply is an advanced feature found in all our multi-fuel stoves; it introduces a controlled amount of air into the flue gases. The tertiary air vents are once again incorporated into the airbox  and are designed to inject air into the path of the exhaust gases. This additional oxygen promotes the secondary combustion of any remaining gases, increasing efficiency and reducing particulate emissions.

 

How to Use Stove Air Vents

Step 1: Preparing your stove

Before starting a fire in your stove, it is essential to check that your air control is pulled out fully – this allows for a sufficient supply of oxygen to ignite and establish the fire.

 

Step 2: Starting your fire

Once you have added kindling and are ready to light the fire, ignite the kindling as you would normally. It is important to leave the control fully open during this stage. The unrestricted flow of oxygen will facilitate the ignition and rapid development of the fire. Allow the kindling to burn until it has taken hold and is burning steadily.

 

Step 3: Closing your vents

As the fire takes hold of the kindling and starts burning steadily, it is time to add some larger wood and start adjusting the control. Begin by gradually closing the primary air vent by pushing in the button. By reducing the primary air supply, you control the amount of oxygen reaching the fire, regulating the burn rate and heat output. Monitor the fire closely and make incremental adjustments to the control until you achieve a desired balance between heat production and fuel consumption.

 

Step 4: Adjusting your vents

As the fire spreads beyond the initial kindling and begins burning the wood, you can fine-tune the heat output by adjusting the single control further. Increasing the secondary air supply promotes combustion, reducing emissions and increasing efficiency. Adjust the control to find the optimal balance that provides sufficient oxygen for clean burning while maintaining the desired heat output.

Explore our types of firewood here.

 

Why Choose Us?

Charnwood has been committed to providing quality wood-burning stoves since 1972 and we know all there is to know about wood burners, and how to get the most out of the wood you burn. If you have any questions about heating your home with a wood-burning stove, please get in touch.

 

Best Firewood to burn chart UK

charnwoodstoves
23 May 2023

When it comes to choosing wood for burning, many people are searching for something that is best in terms of sustainability. Wood is a viable energy source that is virtually carbon neutral and also a cost-effective heat source for many homes. To help you find the best firewood for your needs, we’ve put together this handy chart to show you the different types of firewood available and the benefits they each offer.

Which firewood should I choose?

When choosing your firewood, we would recommend opting for a hardwood as they are generally denser than softwoods and will produce more heat and burn longer. However, softwoods do light quicker and can be cheaper, but they are more resinous than hardwoods, meaning they are more likely to build up tar deposits in your flue.

Common hardwood species include beech and oak.

Common softwood species include cedar and pine.

Kiln dried logs are a good option as these guarantee a low moisture content. ‘Ready to burn’ logs should have less than 20 per cent moisture levels for optimum heat output and efficiency, and with kiln dried logs you can be sure you’re purchasing a consistently dried log that will provide the best source of heat. Naturally seasoned logs are generally less expensive but be sure to test the moisture content before burning. They will need to have been seasoned for at least one year, preferably two.

To learn more about our different types of firewood, view here.

 

Which wood burns the longest?

There are several firewoods that burn for a sufficient amount of time, but oak and hawthorn are both favourable hardwoods to choose. These both burn slowly and produce a good source of heat.

Although hardwoods are a more efficient fuel source in terms of heat output and burning time, they can be harder to ignite from cold. This is when softwood kindling comes in handy, as it can help you get your fire up and running, before using the hardwood to fuel and maintain the slow burning fire.

The following chart is a common list of UK firewoods, showing you if they are hardwood or softwood and providing some detail of their characteristics.

Additionally, to learn everything you need to know about firewood, view here.

 

Firewood Name Hard or softwood Comments Grade
Alder Hardwood Generally considered a low quality firewood as it burns quickly and provides little heat. Poor

 

Firewood Name Hard or softwood Comments Grade
Apple Hardwood Needs to be seasoned. Has a nice smell and burns well with a without sparking/spitting. Good
Ash Hardwood Considered one of the best firewoods. It has a low water content and can be burned green. It is still best when seasoned and will burn at a steady rate. Great
Beech Hardwood Beech has a high water content so will only burn well when seasoned. Good
Birch Hardwood Birch burns easily but also fast, so is best mixed with slower burning wood such as Elm or Oak. A great fire lighter is birch bark. Good -Great
Cedar Softwood Cedar provides a pleasant smell and provides lasting heat but with little flame. You can also burn small pieces unseasoned. Okay
Cherry Hardwood Needs to be seasoned to burn well. Okay-Good
Elm Hardwood A good firewood but due to its high water content, it must be seasoned well. It may need assistance from another faster burning wood such as Birch to keep it burning effectively. Okay-Good
Hawthorn Hardwood A good firewood that burns well. Good-Great
Hazel Hardwood Excellent firewood when seasoned. Burns fast but with no spitting. Great
Holly Hardwood A good firewood that can be burnt green. Good
Hornbeam Hardwood A good firewood that burns well. Good
Horse Chestnut Hardwood Horse chestnut spits a lot and is considered a low quality firewood. Okay
Larch Softwood Needs to be seasoned well. Spits excessively while it burns and can produce a lot of soot. Poor
Lime Hardwood Considered a low quality firewood. Okay
Oak Hardwood One of the best firewoods when seasoned well.  It provides lasting heat and burns at a slow rate. Great
Pear Hardwood Needs to be well seasoned. Burns well with a pleasant smell and without spitting. Good
Pine Softwood Pine burns well but spits a lot and can leave behind soot. It can act as a good softwood kindling. Poor
Plane Hardwood A usable firewood. Good

 

Firewood Name Hard or softwood Comments Grade
Poplar Softwood Considered a poor firewood and produces black smoke. Poor
Rowan Hardwood Considered a good firewood that burns well. Good
Spruce Softwood Considered a low quality firewood. Okay
Sweet Chestnut Hardwood Burns when seasoned but spits excessively. Not for use on an open fire. Poor-Okay
Sycamore (Maples) Hardwood Considered a good firewood that burns well. Good
Walnut Hardwood Considered a low quality firewood. Okay
Willow Hardwood Willow has a high water content so only burns well when seasoned properly. Okay
Yew Hardwood Considered a usable firewood. Okay-Good

Why Do We Split Firewood?

charnwoodstoves
26 Apr 2023

Splitting firewood, the process of dividing large logs into smaller pieces, has become necessary to improve the wood’s quality and ensure an efficient burning experience. In this article, we will explore why we split firewood, how it affects the burning experience, and what factors affect the drying time of firewood.

 

Why Firewood is Split

 

Split Firewood is Easier to Light

When a fire is started, it needs three things to keep burning: fuel, oxygen, and heat. Split firewood provides a better balance of these three components, making it easier to ignite than whole logs.

Split firewood has a higher surface area to volume ratio, meaning that more of the wood’s surface is exposed to the air. This affects the wood in two ways: firstly, it is easier to dry the wood, and secondly, it is easier for the wood to ‘catch’.

Wood that is split is easier to dry than larger chunks of wood, and wood that has a high moisture content is challenging to ignite because it takes more heat to evaporate the water.

The increased surface area also means that more oxygen can reach the wood, which is crucial not only for initial combustion but also for keeping the fire burning.

When you light split firewood (and especially when lighting kindling to start the fire), the flames quickly engulf the wood due to the increased surface area and dryness, resulting in a steady heat output. The efficient combustion process that occurs with split firewood also produces less smoke and ash, which is beneficial for both indoor and outdoor fires.

 

Splitting Firewood Produces More Heat

The greater surface area of split wood (when compared to that same log before it was split) also results in greater heat, this is because more oxygen can reach more of the wood and support combustion. The heat generated from the combustion of the wood is then transferred to the surrounding air, which warms up more quickly.

Because split wood is easier to dry than unsplit wood, there is typically less moisture content in split wood. This means the heat generated from split logs can be used to warm the room rather than being used to evaporate the water in the logs, which can be the case with larger, unsplit logs. Burning wood with a high moisture content takes longer and produces less heat and more steam.

 

What Factors Affect Firewood Drying Time?

The species of wood, initial moisture content, season and climate, size and shape, airflow, and storage location all affect the drying time of firewood. Properly seasoned firewood should have a moisture content of less than 20% and be stored in a dry, well-ventilated area for at least 6-12 months before use.

The type of wood affects the drying time because some species of trees have a higher moisture content than others. For instance, hardwoods like oak, hickory and maple have a lower moisture content than softwoods like pine and spruce, which means they dry at a different rate.

The initial moisture content of the wood affects how long it will take to dry. Freshly cut or “green” wood has a higher moisture content than wood that has already been partially seasoned or dried. If buying partially-seasoned wood, you will need to dry it further yourself, but this won’t take as long as drying it from being freshly cut.

Weather conditions can also affect the drying time of firewood. If the wood is exposed to sunlight and wind, it will dry faster than wood stored in a damp or shady area. The storage method also plays a crucial role in the drying time. Firewood stored in a well-ventilated area with a cover to protect it from rain will dry faster than wood stored in a damp or enclosed area. When stacking firewood for drying, make sure there is a good level of airflow between the logs.

 

Burning Whole Logs – What You Should Know

While splitting firewood is recommended for a more efficient and enjoyable burning experience, it is still possible to burn whole logs. However, burning whole logs requires a longer burning time and produces less heat than split wood. It also produces more smoke and ash than split wood.

When burning whole logs, it is essential to make sure they are well-seasoned (dry) and to ensure that the fire has enough oxygen to support combustion, which can be achieved by adjusting the airflow on the wood-burning stove.

Whole logs have a smaller surface area, and as a result, less oxygen can reach the centre of the log. This lack of oxygen can cause the fire to smoulder, producing more smoke and ash, making it harder to maintain a steady heat output. Whole logs also take longer to ignite than split firewood, and they can be challenging to keep burning consistently due to the reduced airflow around the wood.

To find out everything you need to know about firewood, check here.

 

Why Choose Us?

Charnwood has been committed to providing quality wood burning stoves since 1972 and we know all there is to know about wood burners, and how to get the most out of the wood you burn. If you have any questions about heating your home with a wood burning stove, please get in touch.


 

How to Store Firewood Outdoors

charnwoodstoves
26 Apr 2023

Quality firewood storage is a necessity for wood-burning stove owners. Proper storage is key to ensuring that your firewood stays dry and ready to use, preventing moisture build-up, pest infestations, and mould growth.

In this article, we’ll provide you with tips and guidelines for storing firewood outdoors, including choosing the right location, stacking and covering the wood, and rotating the stack to ensure even drying.

 

Top Tips for Storing Your Firewood Well

 

Choose a dry, well-ventilated area

Firewood must be dry to burn efficiently. A shed, garage, or covered area with good ventilation is ideal.

 

Keep it off the ground

Storing firewood directly on the ground can cause it to absorb moisture and harder to ignite. To prevent this, stack the firewood on a raised platform or pallet.

 

Stack it properly

Stacking the firewood in a neat, organised pile can help it dry more quickly and evenly. Stack the logs in alternating directions to create air pockets between them as this will encourage airflow. Be mindful not to stack the wood too high as this can become unstable and difficult to manage. A stack that is 4 to 5 feet high is usually sufficient.

 

Cover it

Cover firewood with a tarp or other waterproof cover to protect it from rain and snow.

 

Make sure it’s dry

Newly cut firewood can contain up to 60% moisture, so it’s important to let it dry out before burning (moisture content needs to be less than 20% for efficient burning).

Depending on the type of wood and weather conditions, this can take anywhere from 6-18 months. Make sure to rotate logs in your stack regularly to ensure they dry out evenly.

 

Selecting the Right Storage Location

 

Seek Out a Location Close to Your Home

You want to choose a location that’s easily accessible from your home so you can easily bring in and take out firewood as needed. It also makes it easier to keep an eye on your stack.

 

Find a Location off the Soil

As mentioned above, you don’t want to put your firewood directly onto mud or grass as this will cause the wood to absorb moisture from the ground and rot.

You can stack your firewood on surfaces like concrete and gravel, or you can lay a tarp under the firewood. In both these cases, make sure that the wood won’t be sitting in water if it rains. Ideally, you want your firewood raised off of the ground, and you can use a wooden pallet or stacking apparatus designed for storing firewood.

 

Check if There is Room in an Outdoor Non-Wooden Storage Shed

If you have a shed or outbuilding in your garden, you can use this as a place to store your firewood as it is protected from rain and soil. It’s not advisable to use a wooden shed for this as firewood can attract ants – carpenter ants in particular are very damaging to wooden structures. If your shed becomes home to a colony of carpenter ants, over time the roof may become unsupported and you may need to replace the shed.

When considering the best way to store firewood, it is important to ensure proper firewood storage to keep your logs dry and pest-free. Additionally, referencing the best firewood to burn chart UK can help you select the optimal wood types for burning. Knowing how to store logs correctly will ensure your firewood is always ready for use.

To also find out why you should split firewood, check our blog here.

 

Why Choose Us?

Charnwood has been committed to providing quality wood burning stoves since 1972, and we know all there is to know about wood burning stoves. If you have a shed or outbuilding in your garden, you can use this as a place to store your firewood as it is protected from rain and soil. It’s not advisable to use a wooden shed for this as firewood can attract ants – carpenter ants in particular are very damaging to wooden structures. If your shed becomes home to a colony of carpenter ants, over time the roof may become unsupported and you may need to replace the shed.

When considering the best way to store firewood, it is essential to ensure proper firewood storage techniques are followed. Knowing how to store logs correctly will help maintain their quality and readiness for use. Make sure to store firewood off the ground, stack it properly, and cover it to protect against moisture. By following these guidelines, you can effectively store firewood and ensure it remains in good condition for your wood-burning stove. If you have any questions, please get in touch.

Fireplaces: Electric Vs Wood burning Stoves

charnwoodstoves
21 Mar 2023

What is an Electric Stove and a Wood burning Stove?

An electric stove is one that uses electricity to produce heat and a wood burning stove, quite simply, burns wood for heat. They both have their advantages and disadvantages when it comes to cost, heat output and ease of use. This article will help you weigh up the pros and cons for your particular situation.

Electric Stove Benefits

Electric stoves are very easy to use, usually at the flick of a switch and can even be activated with a remote control. They also have relatively low purchase prices with many costing between £100-£500.

Because they use a heating element to warm up the room, there is no mess to clean up. This also means they also don’t need any vent or chimney, meaning they are easier to install, can be installed in more locations in the room and can easily be installed in apartments. This means the installation costs are lower than a wood burning stove.

If you have solar panels (or another form of harvesting renewable energy at home), you could be heating your house at a reduction.

 

Electric Stove Drawbacks

Perhaps the biggest drawback of electric fireplaces is if there’s a power cut, there’s no heat. One of the biggest causes of power cuts is storms damaging power supplies, and these usually take place in winter, which is just when you need your fireplace the most! This is a particular concern issue for those who live in rural or more remote locations.

The price of electricity is greater than that of wood and it’s sensitive to global fluctuations, meaning it can soar easily – as seen in the winter of 2022/23). In many cases, the production of electricity relies on burning fossil fuels, which isn’t sustainable.

While electric fireplaces can imitate the appearance of flickering flames, they lack the appeal of real flames and don’t have the comforting crackle or homely smells of a real fire.

Most electric fireplaces are only able to produce around 1.5kW or 5,000 BTU (British Thermal Units), whereas wood burning stoves typically generate 4 -10 kW (14,000 to 35,000 BTUs), with some going as high as 15kW (50,000 BTU). Also, the heat generated from electric fireplaces only stays in one room.

 

Wood burning Stove Benefits

Logs are the cheapest fuel for households, costing 74% less per kWh than electric heating. After installation, a wood burning stove is far more cost-efficient in heating your home than an electric fireplace.

Wood-burning stoves also generate a lot more heat than electric fireplaces, comfortably producing 4-10kW (14,000-35,000 BTUs. This level of heat output, combined with the low costs of the logs, makes wood burning stoves incredibly efficient.

With a wood burning stove, you can funnel the heat to other parts of the house, not just the room it’s in; this additional use increases the efficiency of your wood burning stove.

Beyond their warmth, they make the real sounds and smells of a crackling fire, making for an unparalleled experience of comfort and have many well-being benefits.

Wood burning stoves need no electricity to work and so are immune to power cuts and price hikes.

 

Wood burning Stove Drawbacks

The initial installation of a wood burner, and a flue if necessary, isn’t cheap. The average installation, including the purchase of the stove itself, is about £2,000.

Requires the chimney to be swept at least once a year – as well as improving the efficiency, this is vital for safety reasons.

You need to have somewhere dry for you to store your wood.

 

So which is better?

While both have pros and cons, the low running costs and high heat output of wood burning stoves make them a clear winner in our book (even if we are slightly biased!)

Here at Charnwood, we sell a range of wood burning and multi-fuel stoves in contemporary and traditional styles, incorporating the latest in clean burn technology.

We’ve been committed to providing quality wood burning stoves since 1972 and we know all there is to know about wood burners, and how to get the most out of the wood you burn. If you have any questions about heating your home with a wood burning stove, please get in touch.

 

How Long Does It Take to Season Wood?

charnwoodstoves
21 Mar 2023

Seasoning wood refers to the drying process used in preparing firewood for being burnt. Wood that has been seasoned has been dried so that, when it is used in a fire, it has a lower moisture makeup and therefore produces less smoke and is easier to light.

Wood that is not properly seasoned and burnt in a wood stove or fireplace can lead to high creosote build-up in the chimney, which can cause chimney fires.

There are a few physical differences between seasoned wood and unseasoned wood:

• Unseasoned wood, due to its higher water content, is heavier

• The ends of seasoned wood are dark and cracked

• Seasoned wood, when tapped against one another, makes a hollow sound

• The bark of seasoned wood is a lot easier to peel than that of unseasoned wood

• There may be green patches on unseasoned wood

 

Factors to Consider when Drying Firewood

Water Content

For a log to be considered seasoned and suitable for burning, it needs to have a low moisture content. If you are drying your own firewood, you should use a moisture meter to determine how much water content your logs still have.

Using your moisture meter, you should keep drying your firewood until it is at least below 20% as a minimum but, ideally, under 10%. The more water there is in a log, the more smoke and less heat it will produce. Most green wood has a water content of around 50%+ when it’s freshly cut.

When acquiring wood you plan to use in a fire, a general rule of thumb is that the greener it is, the longer it will take to seasoning firewood.

 

Average Humidity and Temperature

Wood is a hygroscopic material, meaning the humidity around it can cause the wood to either absorb or release moisture. In areas with high humidity, wood will absorb moisture from the air, and in areas with low humidity, wood will expel moisture.

When it comes to seasoning wood, the obvious ideal combination is low humidity and high temperature, which makes the later days of spring and throughout the summer the best time to season wood.

In an environment with 99% relative humidity, the moisture content of wood will (with enough time) become 23-30% however, when the air has a relative humidity of 75%, the moisture content will work its way down to 14% – an ideal % for burning wood.

 

Wood Species

The kind of wood you use has a bearing on the rate at which wood is seasoned, whether that is hardwood or softwood.

Hardwoods produce more heat when they are burned but take about 18 months to properly season, whereas softwoods can be seasoned in 6-12 months and have the added bonus of being easier to cut and split, making them more appealing for many who cut and prepare their own wood.

The terms hardwood and softwood don’t actually apply to the woods themselves, but to the trees’ seeds: hardwood seeds have a covering while softwood seeds don’t.

When it comes to burning wood, a top tip is to use softwoods to get the fire going then hardwoods to have a long, enduring heat.

Cedar and pine are good softwoods to burn, while ash, oak, birch, fruit trees and even eucalyptus wood are great hardwoods for fires.

 

Proper Stacking

Wood should be stacked off the floor so as not to absorb ground moisture, and you need to allow plenty of ventilation between stacked logs so that moisture can escape.

When you are cutting your wood, cutting it to similar sizes will make it easier to stack. Cutting each log into 16-inch long cords is standard, and then cutting the wood into quarters is a popular and effective method.

Seasoning your wood outside is best, ideally in a location that gets plenty of sunlight. If you live in an area with high levels of rainfall, keeping it outside but covered (like in a barn or shed) is an option, so long as there is plenty of airflow around the wood. Don’t season your wood in your home as there is a risk the drying wood will attract termites; it will also not season properly when it’s indoors.

You can use a firewood log rack to help with the seasoning; these are metal frames that keep the logs off of the ground, promote airflow around the cords and can be positioned for optimal sunlight.

When stacking, you need to be sure any rain (or snow) won’t soak your logs. Avoid this by either storing them in a sheltered area or by protecting them with a waterproof cover, but be sure to keep the ends exposed to the air.

To find out everything you need to know about firewood, check out this blog.

 

Average Time to Season Wood

There are many variables when it comes to firewood seasoning and many ways to help speed up the seasoning process, however, the average time to season wood that you’ve cut from a tree is approximately 12 months. It can take an average of 6 months if you’ve bought the wood from a supplier.

Wood will dry out more quickly when it has been chopped into smaller pieces – the smaller the piece, the quicker it’ll wood seasoning. You can expect wood to dry at a rate of approximately one inch per year – i.e. a log that is one inch wide will take one year and a log that is two inches wide will take two years to seasoning firewood.

As well as splitting the wood into smaller pieces, you can also speed up the seasoning process by:

• Drying it in late spring or summer

• Stacking it correctly – plenty of ventilation between logs and ends exposed to the air

• Stacking it in bright, direct sunlight

• Dry it in a kiln

 

Also explore our Wood-Burning Stove FAQs.

 

Why Choose Us?

Charnwood has been committed to providing quality wood burning stoves since 1972 and we know all there is to know about wood burners, and how to get the most out of the wood you burn. If you have any questions about heating your home with a wood burning stove, please get in touch.

Why burning the RIGHT wood saves you money & protects the environment!

charnwoodstoves
23 Jan 2023

With the cost-of-living crisis biting, we are all looking for ways to save money – particularly on our bills! If you own a wood-burning stove you are in a stronger position than most, however, we urge you not to cut corners and always use appropriate fuel. Following stove best practices are vital for the environment, your health and ultimately in the medium to long term, your pockets!

Read on to learn more about woodstove best practices and how following them saves you money!

Burning the right fuel

It is very important to only burn wood with a moisture content of 20% or less. This will keep harmful emissions to a minimum and significantly improve efficiency while protecting your stove and chimney – saving you money!

Look out for the Woodsure Ready to Burn label which guarantees a moisture content of 20% or less.

For a list of approved firewood sellers in your area click here.

What not to burn

Here are some of the key things to avoid burning. Please note this is not an exhaustive list.

-Unseasoned or wet wood (moisture content above 20%)

-Plywood offcuts, chipboard and MDF are not advised due to the glues used to make them.

-Avoid old/recovered wood that has been treated or old painted wood as these can be toxic.

-Do not burn rubbish.

-Printed papers are coated with chemicals and can cause troublesome ash deposits.

-Natural or synthetic fibres, such as fabric, burn too fast and can be toxic.

-Any solvents or chemicals and substrates potentially exposed to them.

How long does firewood usually take to season/dry?

Firewood takes approximately 12 months to season, however, there are ways (set out below) that can help reduce the time it takes.

How to speed up the seasoning/drying process

SPLIT wood into logs in a size to suit your stove no larger than 15cm (6”) in diameter. Split some smaller pieces to use as kindling.

STACK the wood in a place that gets plenty of sun and ventilation. An untidy pile of wood may rot before it has time to season, so make sure the logs are stacked in a way that allows air to circulate. Ideally, keep the stack off the ground and away from the house and stack the wood bark side down, except for the top row:

Never stack logs above head height to prevent injury from falling logs.

COVER the stack to protect it from rain and snow. You can cover just the top, or the sides as well – just make sure the air can get in and that moisture isn’t getting trapped.

STORE the wood for 18-24 months or until the moisture content is below 20% (you can test this with a Moisture Meter). It’s a good idea to bring wood inside two or three days before you intend to burn it to make sure it’s properly dried out and ready to use.

Caution – what not to do

Don’t stack wood against your wood-burning stove! Whilst it may look attractive, stacking wood to dry around or against your stove is a significant fire risk. It is vital that safety clearances to combustibles are maintained.

For all the required info please read: Setting Clearances & Installing Heat Shields for your fireplace.

Potential free sources of wood

1. After a storm

After a storm, fallen trees and branches become available which, with permission, you can collect. This would need to be seasoned before use.

2. Industrial woodworkers

Woodworkers, sawmills, and joiners near to your home are worth contacting to find out if they ever have any offcuts of wood that they need to get rid of. This is likely to be dryer than other sources with the potential to be used straight away.

3. Online

Whether it is leftover wood from a recent home improvement or a tree that had to be cut down, people often advertise free wood on websites like Gumtree and Freecycle if you are happy to collect it. Make sure to check it with a moisture meter before using.

What is the perfect wood-burning temperature?

The ideal wood-burning temperature range is between 140 and 240 degrees Celsius (284 to 464 degrees Fahrenheit) which avoids damage to the stove and potential creosote buildup.

How to adjust the fire temperature?

To reach a sufficient temperature, ensure a good draft, use seasoned wood and build the fire correctly ensuring your fire burns hot enough. To reduce the temperature of your fire when in use, you can close the air vents.

You can use a Flue Pipe Thermometer to make sure you are burning wood in the perfect temperature range.

For more wood-burning stove tips please read:

https://www.charnwood.com/8-tips-wood-stove-users-holiday-season/

Everything you need to know about firewood

charnwoodstoves
10 Dec 2022

When it comes to choosing firewood for burning on your stove or creating an outdoor fire, there’s plenty to consider. The best results rely on opting for the best type of firewood for your needs.

So, to give you a helping hand, we’ve created a guide to everything you need to know about firewood.

First and foremost, there are two different types of firewood, falling under two distinct categories – hardwood and softwood.

What is hardwood?

Hardwoods are denser than soft woods, making them ideal for creating indoor fires. Popular hardwoods include oak, birch and ash. All are ideal for heating your home.

Hardwood is best suited for indoor environments as it produces more heat and burns for longer.

What is softwood?

Softwoods are less dense and ignite faster. This makes them far better for fuelling outdoor fires, as they can produce a little more smoke which can be unpleasant if they are burned indoors.

Again, there are lots of different types of softwood, including pine, cedar and larch. The best type of softwood for your fire will depend on your needs and how you plan to use it.

Seasoning your wood

Once you’ve chosen your firewood, you’ll need to ensure it is seasoned correctly before you attempt to light up your fire.

Seasoning involves ensuring that your wood is properly dried out in order to get the best out of your fire. Wood that contains moisture or is not fully dry won’t burn efficiently and will be slow to ignite. Suitable wood should have a moisture content of less than 20%.

There are a few ways to check whether or not your wood is correctly seasoned. For example, if your wood is light and has cracks on the ends, it’s highly likely that it has dried out. Another way to check is to examine the colour of your wood. Wood is usually yellow, grey or deep brown when it is dry. At Charnwood we do offer a pronged moisture metre that can be inserted in the log to give you an accurate moisture reading.

If buying wood in smaller volumes look out for the Woodsure ‘Ready to Burn label’ which guarantees a moisture content less than 20%.

Split up your logs

A fire will burn far more effectively if you split your logs into halves or quarters. This will help your wood to dry quicker too. As a general rule of thumb, you should try and cut your wood up into pieces that are between three to six inches. For larger outdoor fire pits or wood furnaces, they can be slightly larger.

Avoid storing firewood in your home

Finally, you should avoid storing large quantities of firewood in your home. Why? Firewood is notorious for being the home of choice for ants and other creepy crawlies, so it’s not a good idea to bring your logs into your home, unless you want them to bring their extra guests in with them!

Instead, create a dedicated storage area for your firewood outside such as a woodshed, a ventilated storage container or even a dedicated area protected by a natural bark barrier. Your wood should also be kept well ventilated season to season.

For more information around keeping your property safe while using a wood-burning stove, check out our blog here.

If you have any questions about firewood or any other aspect of using your wood burner or stove, please get in touch.

Types of firewood

charnwoodstoves
23 Nov 2022

Used in many homes, firewood is a sustainable and cost-effective way to heat your property or outdoor space.

Whether you’re looking for suitable wood to burn in your stove or use in your fire pit on chilly summer evenings, it’s important to choose the right type of firewood. Not all types of firewood burn in the same way, so it’s important to understand the differences if you want the best possible results.

Here’s our guide to everything that you need to know about firewood.

What’s the difference between hardwood and softwood?

Firewood falls into two main categories – softwood and hardwood.

The main difference between hardwood and softwood is their reproduction and physical structure. For example, hardwoods are a lot denser than softwoods, meaning that they produce more heat and burn for longer.

On the other hand, softwoods are less dense, meaning they ignite faster and produce more smoke, making them more suited to outdoor fires.

For more information about firewood, check out our additional blog called everything you need to know about firewood.

Why choose hardwood?

Perfect for creating indoor fires in log burners and woodburning stoves, there are lots of different types of hardwood, including oak, birch and ash. Hardwood is especially useful for those looking to fuel a stove or heat a house.

Let’s take a closer look at the most popular types of hardwood:

Ash

Ash is particularly good for wood burning, as its properties allow it to burn on its own and produce an intense heat output, with a steady flame.

Oak

Oak is one of the most common types of hardwood used in homes, due to the fact that it is capable of burning for long periods of time and can be used efficiently with a different types of logs.

Birch

Available in black, yellow and white, birch can burn for a long period of time and can also be used as a natural fire starter.

Why choose softwood?

If you’re looking for firewood for an outdoor fire, softwood is a much better option than hardwood – it ignites far more quickly, meaning its ideal for campfires and kindling.

Softwood also seasons more rapidly than hardwood. There are lots of different types of softwood to choose from, including pine, cedar and larch.

Here’s a closer look at their properties. 

Larch

Low maintenance larch is the hardest of the softwood family and requires intense heat to burn effectively.

Pine

Easy to light and burn, pine produces an impressive flame and is great to use as a fire starter. It’s important to note that pine should only ever be used in outdoor environments due to the fact that it burns incredibly fast.

Cedar

Finally, cedar produces a distinct crackling sound with a small flame. One of the main advantages of this type of softwood is that it can be burned unseasoned. It also gives off a lovely wood burning smell.

To find out more about the best type of firewood to use with your Charnwood wood burning stove, please get in touch, we’re always on hand to offer help and support.