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The modern wood burning stoves of today ensure low emission and low carbon heating for our homes. However there have been a number of misleading reports circulating in the news recently suggesting stoves are responsible for contributing far more particulate emissions than they actually do.

It is important to say that some of the air pollution statistics that are quoted are not only incorrect but they lump modern, clean burning stoves together with all sorts of domestic fuels, older appliances and open fires.

The Stove Industry Alliance (SIA) have produced this short film to help dispel these reported myths around wood burning stoves with the real facts and address three of the major misconceptions that are being mis-quoted by the media.

1)‘Wood burning stoves are the biggest contributor in the UK of small particulate matter’.

This is not true. At the root of this myth is a statement from Defra’s Clean Air Strategy claiming that domestic combustion accounts for 38% of fine particulate matter. This number was based on a survey carried out by the government in 2015  which wrongly over-estimated the amount of wood being burnt in the UK on stoves and fireplaces. (1)

A much bigger survey carried out in 2019 by the SIA (2) showed the actual figure was less than a third of what the government quoted, making the percentage of PM.2.5 that could be attributed to domestic combustion closer to 13% and NOT 38%.

Subsequent figures recently published by Defra (3) corollate with the SIA’s findings and if their new wood fuel volume figures were combined with the correct emission factors, the real percentage of PM2.5 attributable to domestic wood burning would be less than 10%.

In addition to this the 38% figure was based on emissions from older stoves and open fires. It is proven that modern Ecodesign compliant wood burning stoves (which the majority of our Charnwood models conform to) produce 66% LESS emissions than these outdated appliances. Other sources of PM2.5 were also included in its overall estimation, including wildfires, bonfires, and incinerators which are unregulated sources of particulate matter and certainly not insignificant.

Find out how to clean a wood-burning stove correctly.

 

2) ‘Wood burning stoves create the same emissions as 18 diesel cars’.

This comes from test results interpreted by the Air Quality Expert Group (AQEG) but their comparison is extremely misleading and, as the SIA film points out, it is like comparing apples with oranges.

Firstly the comparison is between the appliances running at significantly different efficiency levels, by measuring a car exhaust emissions at an efficient run rate of 21mph and comparing them to all of the emissions at a full run rate for a stove. This completely ignores all the small particle emissions from the car’s brakes and tyres, when frequently the emissions from a car’s brakes and tyres are actually greater than the emissions from the exhaust pipe!

Finally the difference in the dispersal point of particulate matter from wood burning stoves to cars is ignored completely. A car outputs its emissions at face level for a child and therefore there is very little dispersal before it is breathed in, whereas a woodburning stove sends its emissions out of the top of the chimney and there is considerable dispersal of emissions before they even reach human height.

Find out what you can burn in a wood-burning stove.

 

3) ‘Wood burning stoves and fireplaces are harmful’.

Chair of the Stove Industry Alliance, Morley Sage, explains why this is one of the more concerning misconceptions:

“This view fails to take into account the huge advances that have been made by the woodburning stove industry in recent years. Many critics of woodburning stoves base their assumptions on data linked to open fires, older stoves and poor-quality wood fuel. The SIA would be one of the first organisations to point out that burning wet wood on an open fire, a practice that is still very common today, is one of the least efficient and most highly polluting ways to heat your home. By stark contrast, a modern wood burning stove emits up to 90% less emissions than an open fire and up to 80% less than a stove that is 10 or more years old.”

Members of the SIA (including us at Charnwood) were among the first manufacturers to develop ultra clean burn technology within our appliances to achieve the forthcoming 2022 Ecodesign Regulations (SIA Ecodesign Ready). More recently the SIA has supported and initiated the launch of clearSkies, an independent emissions and energy performance certification scheme for solid fuel stoves and fireplaces. Appliances that are certified under clearSkies will not only meet the performance levels set out under Ecodesign, but also many go a significant way beyond. The majority of our Charnwood stoves achieve highest clearSkies certification: Level 5.

Far from being the problem, modern wood burning stoves are actually the solution to a low carbon, sustainable future domestic heating strategy.

The REAL facts about modern woodburning stoves are that they are a future proof, highly efficient, very low carbon and sustainable way of heating our homes and keeping our families warm, and that is something to be truly proud of.

For further information visit www.stoveindustryalliance.com

 

1) The BEIS Domestic Wood Survey using a sample size of 1,206

2) SIA independently verified research carried out in 2019 using sample size of 10,620 using same questions as BEIS survey

3) The Emission of Air Pollutants in the UK 1970 to 2019 and Defra Research Burning in UK Homes & Gardens Report  

 

Why Choose Us?

At Charnwood Stoves, we pride ourselves on being your trusted partner in wood-burning stoves. With years of experience and a commitment to quality, we offer the finest selection of stoves that combine timeless design with eco-friendly technology.

Our team of experts is dedicated to providing you with honest and reliable information, ensuring you have all the facts you need to make an informed decision. Choose Charnwood Stoves for a reliable, efficient, and sustainable heating solution that will transform your home while minimising your impact on the environment.

Contact us today.

 

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With the sudden drop in temperature and an autumn chill in the air, nothing beats a cosy evening nestled by your wood burning stove.

But as we head towards the winter months, your wood burner could need some TLC before its ready to be used more regularly.

To help keep your wood burner well maintained in readiness for those long winter nights, we’ve compiled our tips on how to clean wood burner glass alongside other upkeep advice.

 

How to keep wood burner glass clean

Your wood burner is not only a source of warmth, it is also a focal point within your home. Many modern generally feature clean-burn air wash which naturally keep the glass clean. However when used regularly, soot may build up on the glass door, which can drastically reduce the view of the fire. The most common cause of this is when wood with a moisture content higher than 20% is burnt or if a burning log is touching the glass.

Here are some do’s and don’ts on how to keep wood burner glass clean.

Do…

Use a damp crumpled paper towel or newspaper, dip it in fine wood ash and use this to rub the stove glass clean.

If there is substantial build up on the glass, burn a high temperature fire in the wood burning stove before you try to clean the glass. Ensure you have plenty of well-seasoned wood in your wood burner to create a fire of a high temperature.

Make sure you use a wood stove glass cleaner, or a ceramic stove top cleaner.

Ensure you wait until the wood burner glass is cool before you attempt to clean it.

Clean your wood burner glass on a regular basis to prevent a build-up of soot.

Don’t…

Never attempt to clean your wood burner glass when there is a fire burning inside the stove or the surface is hot.

Avoid spraying water on hot wood burner glass – this could cause the glass to crack or shatter.

Never use sharp objects or abrasive cleaners to clean your wood burner glass – these could damage and scratch the surface of the glass.

 

How to clean a wood burner

When it comes to cleaning your wood burner, there are many interior and exterior elements to consider.

Ensure exterior surfaces are cleaned with a soft brush, damp cloth or a vacuum cleaner. These will effectively remove any soot and dirt when the stove is cool.

Take the time to empty out the ash pan and firebox completely when your wood burner is not being used. Inspect the rope seals on the doors and flue, as it is not uncommon for these to become damaged through everyday wear and tear.

Find out more wood burning stove cleaning tips and tricks in our blog: How to clean your wood burning stove.

 

Why is my wood burner smoking?

If your wood burner is smoking, there could be several reasons, including:

A blocked chimney

The wrong fuel is being used

An issue with the air pressure in the room

A problem with the draw of your chimney

A cold weather snap

To stop your wood burner from smoking, you need to ensure you have the correct air pressure, no chimney blockages and are burning the correct fuel. If you have any further questions about your smoking wood burner, contact us today.

Find out everything you need to know about having your wood burner in your house.

 

Why does my wood burner smell?

If your wood burner is emitting an unpleasant smell, it is unlikely that this is coming from the wood burner or stove itself. The smell is more likely being caused by other factors, including:

The stove is new and requires a ‘break in’ period

The fire is releasing too much smoke

Burning damp wood which contains too much moisture

Burning polluted wood

The fire isn’t hot enough

Blocked chimney or flue

Insufficient chimney size which cannot easily remove waste smoke and gases

Wet weather

If the weather is much lower than usual and smoke and gases cannot leave the home properly

Reduced airflow

 

Find out how to light a wood burner.

 

Why is my wood burner not getting hot?

If your wood burner is not getting hot, this could be due to a variety of reasons:

• The draft on the stove is poor – draft on the stove is needed to suck air from the stove out of your home. If the waste gas is unable to escape, fresh air won’t be getting to the fire and this will prevent the stove from heating. Test the draft by lighting a piece of paper on one end and placing it under the flue outlet inside your stove. If the smoke disappears, the draft should work effectively when the fire starts.

• The air vents need opening – if the air vents aren’t open enough, it will prevent oxygen getting to the fire. Open up the air vents and create a larger supply of oxygen to enable to the fire to burn through the wood more quickly.

• The air vents are open too much – if the air vents are opened too much, the stove may not get hot. While the air vents should be opened fully when the fire is being lit to maximise oxygen levels, these can be gradually closed down as the fire gets hotter to ensure too much air isn’t getting to the fire.

• Lack of secondary combustion – this process involves maximising heat from burning wood by burning off waste gases from the fire. Secondary combustion will only occur when a higher temperature is reached.

• Fire incorrectly lit/built – if a fire is built and lit incorrectly, it will prevent the stove from getting hot. Lay crumpled pieces of paper on the bed of the stove to help encourage the fire to spread to the wood. Softwood kindling can then be placed on top of the newspaper, followed by smaller logs once the fire has caught.

• Wet wood – if your wood is too wet, the excess moisture will prevent your wood burner from getting hot. We recommend a 20 per cent or lower moisture content threshold for firewood. If your wood contains more moisture than this, it will need to be dried out for a further season before if can be used.

Find out more in our blog: How to use a wood burning stove.

How often should I sweep my wood burner chimney?

We recommend that wood burner chimneys are cleaned at least once a year. This should take place when the temperature drops in the cooler months before the wood burner is used more regularly.

 

Contact Charnwood today

To find out more about keeping your wood burner well maintained, contact Charnwood today. Our friendly, expert team are on hand and more than happy to answer any queries you may have.

 

Why Choose Us?

At Charnwood Stoves, we understand the importance of keeping your wood burner glass clean and clear for optimal enjoyment. With our extensive experience in the industry, we offer a range of high-quality cleaning products specifically designed for wood burners.

Our innovative solutions effectively remove soot, tar, and residue, restoring the beauty of your stove. Trust us to provide you with reliable and eco-friendly products that make maintenance effortless, allowing you to focus on cozy moments by the fire. Choose Charnwood for superior glass cleaning solutions tailored to your needs.

Contact our team today.

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When it comes to choosing fuel for your wood burning stove, it’s important that you burn the right wood. This will not only ensure that your stove burns stronger and for longer, but it will also help reduce your fuel costs as a result.

Burning the wrong type of wood can increase fuel costs and damage the internal parts of your stove. In some cases, it can even cause irreparable damage to the stove body or flue system, so it’s important you understand what type of wood will work with your appliance.

Here’s a closer look at what you should burn in your wood burning stove.

Hardwood firewood

Hardwood is a great fuel for wood burning stoves. With a variety of different types available, including ash, birch, maple and oak, as well as the wood from the vast majority of fruit trees, hardwood firewood is renowned for burning for longer periods, while generating lots of heat.

Another advantage of hardwoods is that they are generally cleaner to handle, making them a great option for your stove.

Softwood firewood

A lot cheaper than hardwood, softwood can also be used in your wood burning stove. Fir is the most popular choice, although there are plenty of other options, including balsam, pine, spruce, cedar, alder, tamarack and poplar.

Find out what other types of firewood we offer.

How do softwoods burn compared to hardwood?

Softwoods tend to burn faster than hardwood and leave a finer ash behind. They can also be messy to handle and are renowned for causing a build-up of tar in your chimney. Spruce, pine and balsam can be particularly difficult to handle.

Find out how to clean your wood burning stove.

What’s the best firewood for generating heat energy?

There are lots of different types of firewood and many of them can be categorised based on their performance. For example, the following types of firewood typically generate the best amount of heat energy:

• Apple
• Birch (Yellow)
• Red oak
• White ash
• Maple (Sugar)
• White oak
• Beech (American)
• Hickory (Shagbark)
• Ironwood

Whether you opt for hardwood or softwood, always make sure that it is totally dry before you use it. Never attempt to burn green wood as it will produce less heat and a lot more smoke.

Make sure your wood is dried, seasoned and stored correctly so you can enjoy optimum heat with low fuel costs. Your wood should always be stacked in a cool dry place with efficient air circulation and covered on the top only. If you can, rotate your wood as much as possible and always burn older, dryer wood first.

As a general rule of thumb, hardwood and softwood should have a moisture content of less than 20 percent if it’s being used for burning.

Find out how to install a wood-burning stove correctly.

If you have any questions about your Charnwood wood burning stove, please get in touch.

 

Why Choose Us?

At Charnwood Stoves, we provide the finest wood-burning stoves for your home. With our extensive expertise and commitment to quality, we offer unrivaled performance, efficiency, and style. Our stoves are designed to maximize heat output while minimising environmental impact.

Choose Charnwood Stoves for an eco-friendly and aesthetically pleasing heating solution that will transform your space. Trust in our heritage of craftsmanship and innovation to bring warmth and charm to your home, all while enjoying the natural beauty and comforting ambiance of a wood-burning stove.

Get in touch with our team today.

 

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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.

 

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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.