Month: January 2024

Light A Fire By Charmain Ponnuthurai

charnwoodstoves
31 Jan 2024

The next in a series of essays by Charmain Ponnuthurai explores the importance of real fire in a modern world.

Sometimes we don’t, as the classic saying goes, see the wood for the trees. The argument against wood fires has reached this territory, and there is the danger that any understanding becomes lost in a forest of soundbites and clickbait headlines. Each side of the argument of course has biases towards their own interests, and there are, of course, holes in both. However, with the question of peoples’ wellbeing at stake, it is in everyone’s interests to ensure that we are considering all angles and understanding how serious the holes are.

We understand more than ever that physical and mental health do not stand in isolation from each other: instead they feed into one another in a symbiotic relationship. According to Cell Biologist Dr Bruce Lipton, our subconscious is the most potentially harmful component to our overall health, as without an understanding of our subconscious needs and desires, we cannot change our outside circumstances to match. The most harmful action towards our cells, according to Dr Lipton, is our ability to de-program the learnt behaviours from ages one to seven that determine how we react to 95% of dealing with daily life. This stagnation means we are not in touch with ourselves and fail to follow the much simple advice by all spiritual teachings, ‘of being in the moment’.

Technology has irrevocably changed the lives of all of us: we have a constant bombardment of information and data thrown at us, a stream that doesn’t even pause as we walk down the street, or take a journey on a train. We are constantly locked into our phones. This has resulted in an increased sense of anxiety both just when we speak to each other but from the data itself. Endless stimulation is a hard drug to unwind from. The majority of us spend our days behind a screen, on a phone and or talking on zoom calls, rather than meeting each other face to face, compounding the sense of anxiety we all at times share. One of the best ways to relax, then, is to find ways to be still and understand what is determining our actions, through daily rituals such as cooking. As we found in the Charnwood survey, which sampled over 1,200 people, many found solace in their woodburning stoves. The majority of participants in the survey said the most important use of their stove was the sense of wellbeing it brought them. The naturalness and sense of calm of seeing the element of fire and watching the flickering of a flame is something we can all relate to, whether that be from candlelight or a campfire.

It is important, however, to consider how we may use our stoves in the most healthy and environmentally efficient way. We must first consider the difference between efficient stoves and other forms of indoor fire. In the World Health Organisation report on Household Air Pollution it specifically lists that open fires and inefficient stoves, “generates harmful household air pollution” Click here to read more

At Charnwood, our central and ongoing commitment is to efficiency and the environment, to allow you to experience the maximum positive wellbeing effects, without compromising your physical health, or risking damage to your natural surroundings. We ensure efficiency by a constant refinement of the wood-burning process and technology, incorporated within our Eco Design. The key feature is our Quattroflow® Air Management System. You can read more about this here.

Our stoves are designed to run on seasoned or kiln-dried wood. It is very important that the logs you burn have a moisture content of less than 20%.

Hardwoods such as ash, birch, beech or oak are renowned for burning hot, clean and for longer periods. Softwoods such as fir, pine and sycamore can be used but will burn faster with moderate heat output. Freshly cut logs generally contain over 60% water and should be dried for 18-24 months before the wood is ready to burn.

Split wood into logs to a size to suit your stove’s firebox. Split some smaller pieces to use as kindling. Stack the wood in a place that gets plenty of sun and wind.

A 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. 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%. 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.

Kiln Dried Wood is another widely available alternative. The wood is cut, split and dried in large ovens, which speeds up the seasoning process. Look out for the Woodsure Ready to Burn label which guarantees a moisture content of 20% or less.

The broader medical understanding we now have of the importance of the link between the body and mind for overall well being reminds us that in order to manage the stress of modern daily life, we need simple rituals that take us back to nature and ourselves. Lighting a fire is one simple beginning, Chef & co-founder of Acme Fire Cult says, “without fire we would never have evolved from having fur”. As long as you follow our tips to ensure your fire is as environmentally and human health friendly as possible, it is sure to work wonders for your physical and mental health.
 

Lighting your fire

Follow our four simple steps when making your fire. By running your stove in

this way you will achieve maximum efficiency with minimum emissions.

● Place 2-3 smaller logs on the stove bed. On top of this build a Jenga

stack of 6-8 kindling sticks and place a natural fire lighter inside

● Close the door but leave it slightly ajar. This helps to heat the chimney

flue for a clean burn. Once the fire is burning well close the door and

reduce the air control.

● Fully open the air control for maximum air intake and a quick and easy

ignition. Light the fire lighter.

● Every time a log is added, open the air control again until the fire is

burning well and then return the air control to normal. Re-fuel little

and often.

Maintain your stove

The winter months are when your Charnwood stove will see the most use.

Regular maintenance will ensure your stove burns safely and efficiently while

giving you many years of service.

● Clean the glass – If soot accumulates on the stove glass we offer an

effective Atmosfire dry wiper for cleaning. For any stubborn stains you

can use a stove glass cleaner or ceramic hob cleaner but avoid using

any abrasive cleaning products.

● Clean the surface – When it comes to cleaning the exterior surface of

your stove and the surrounding area, you can’t go far wrong with a

soft brush and a damp, lint free cloth. It is important you only clean

your stove when it is unlit and cool to the touch.

● Empty Ash Pan – When burning wood it is helpful and effective to

start your fire on a bed of wood ash but avoid letting the ash build up

too much. When your Charnwood stove is not in use empty out the

ash pan and firebox completely.

● Inspect door seals – Take the opportunity to regularly check the rope

seals on the doors and around the flue to ensure your fire box is air

tight and the doors close firmly. A well sealed stove will burn much

more efficiently and effectively.

● Sweep Frequently -It’s important to keep your flue clear of

blockages and soot and we recommend you have your chimney swept

at least once a year. Your Charnwood stove is fitted with a dropdown

throat plate allowing you to sweep through the appliance with

minimum mess.

Read more about the argument surrounding wood fires and why there is more to the story

” Therefore see whether the light that is in you isn’t darkness. If therefore your whole body is full of light, having no part dark, it will be wholly full of light, as when the lamp with its bright shining gives you light.”

Luke 11:34–36

The SIA Expertly Address the Anti-Woodburner’s Misleading Claims on Clean Air Night

charnwoodstoves
26 Jan 2024

The SIA have written a fantastic blog to address the anti-woodburner’s misleading, ambiguous and, in some cases, untrue media campaign. It was released in time for Clean Air Night to give consumers a chance to get both sides of the story. Here we will share the key information as we want to amplify their important voice in this ongoing debate.
 

The claims made here by the London Wood Burning Project (above left) and cleanairhub.org.uk (above right) rely on the grouping of all methods of burning wood (including garden bonfires & firepits) at home. However, the data from the National Atmospheric Emissions Inventory (NAEI) shows us that burning dry wood on an Ecodesign compliant stove accounted for less than 0.1% of total UK PM2.5 emissions in 2021.

Modern stoves offer a range of benefits and you can get both sides of the story and learn more about that here.

Just like the posts above, the term ‘wood burning’ in this post (below) is deliberately ambiguous and takes no account of the type of appliance or quality of the wood fuel.
 

There is reliable evidence that using dry wood and other sustainable solid fuels can help consumers reduce their home heating bills. A recent study by Gemserve for Homefire found that households with gas central heating that adopt zonal heating using dry wood fuel could save up to 7% on their annual heating bill and up to 11% using smokeless solid fuel in the same way.

The same study also found that using renewable, sustainably sourced wood fuel instead of fossil fuel gas results in typical carbon savings of over half a tonne of CO2e / year.

You can read more about this study here
 

The claim (above) that a wood burning stove is six times more polluting than an HGV is hugely misleading.

The claim is based on a report by the European Environmental Bureau published in 2022 that looks at the amount of emissions given off by generating a GJ of heat in a stove compared to the emissions releases generating a GJ of power in an HGV.

The claims made by the study rely on a simplistic calculation using permitted rates of emission. The study also fails to factor in the non-exhaust emissions of the HGV.

What we end up with is an apples and oranges comparison that fails to consider the impact of real-world use. According to a 2020 Defra report, on average stove users light their stoves for between 3.7 and 4.5 hours a day during the winter months. An HGV can be driven by the same driver for up to 9 hours per day, and the vehicle potentially operates 24/7 up to 365 days a year.

This means that over the course of 1 week’s real-world use a Euro 6 HGV actually produces 13 times more PM2.5 (271g) than an Ecodesign stove (20.16g). You can read more on this comparison here.
 

This claim (above) by campaign group Mums for Lungs is ambiguous and relies on the reader not seeking any further information on the data.

The data from the National Atmospheric Emissions Inventory (NAEI) which breaks down UK PM2.5 emissions by activity and source, shows us that in 2021 cigarette smoking accounted for 12 times more PM2.5 in the UK than burning dry wood on an Ecodesign compliant stove did.

Some of the adverts by the cleanairhub.org.uk, part of Global Action Plan, in support of Clean Air Night even contain false claims (see below).
 

This is one example. Contrary to the information given in this post, wood logs have the lowest carbon emission factor of any domestic heating fuel at 0.01kg CO2e per kWh. That’s 1/20th the carbon emissions of natural gas or electricity, and 1/29th that of oil.

Burning dry wood is a modern, Ecodesign compliant stove is a low carbon way to heat you home and can play a key role in helping the UK to meet its net zero objectives.

You can find out more about the benefits of choosing modern stoves here.
 

This statement (above) is false. Woodland management is needed to ensure healthy forests and the ecosystems they support.

Wood fuel is a key component of the woodland management cycle and the economies attached to it. Using wood as fuel also plays a vital role in maintaining woodland diversity, health, and resilience. Locally sourced wood fuel helps support small businesses and reduces the carbon footprint of fuel transport.

You can learn more about the importance of woodland management here
 

This is another misleading statement (above) and one which is actually disproved by the findings of a recent Imperial College study which found that a “clearSkies Level 5 stove demonstrated some benefits for indoor air quality” and that “the biggest increases in PM2.5 concentrations indoors did not relate to indoor wood or solid-fuel burning but instead were a result of cooking…”.

A literature review by commissioned by the SIA and carried out by the University of Manchester found no scientific evidence for adverse health impacts from exposure to the indoor air typically associated with modern, enclosed wood burning stoves.

You can read more about this here

And lastly for something positive. We could not agree more with this post and there are significant reductions (up to 90%) possible in the emissions created by domestic burning by switching from open fires and older stoves to modern, Ecodesign compliant stoves.
 

The SIA encourages all solid fuel stove users to educate themselves on the importance of:

Using the right appliance – if you use an open fire or an older stove it is time to upgrade. A modern Ecodesign compliant stove releases up to 90% less emissions than an open fire and up to 80% less than many older stoves.

Ensuring your stove is fitted by an appropriately qualified competent person e.g. HETAS or OFTEC registered.

Always use good quality fuel. Look for the Ready to Burn logo and never use chemically treated wood or burn waste on your stove.

Get your stove serviced and your chimney swept at least once a year. We recommend NVQ qualified sweeps for this.

You can download this page as a PDF here.

These blogs by SIA members are also well worth a read:

Charnwood Stoves

Certainly Wood

Charlton & Jenrick

Exposing The Anti-Woodburner’s Flawed Data – 5 Key Take Aways

charnwoodstoves
17 Jan 2024

A negative narrative is being unfairly manufactured around the wood-burning stove industry, by anti-woodburning groups such as the ‘London Wood Burning Project’ and ‘Clean Air Hub’.

The TRUTH is that UK PM 2.5 emissions have been steadily decreasing over the years despite record stove sales. In this blog, we summarise the flawed data and unfair generalisations anti-woodburning groups are using.

1/ What do they mean by ‘Wood-Burner’ & ‘Domestic Burning’?

They combine emission sources (Inefficient Old Stoves, Open Fires, Bonfires and Modern Ultra Efficient Stoves) to create a bigger more impactful number, and then claim 17% of London’s emissions come from ‘domestic wood burning’ or ‘wood burners’. Catch-all terms the public understandably associates most often with wood-burning stoves – especially because they create ad campaigns prominently featuring images of wood stoves. However, the actual contribution of modern wood-burning stoves is estimated by the UK government’s official figures at just 1-2%! (1)

2/ They use Weak Science & Manipulate Data

Imprecise methodology

Their data collection relies heavily on estimations and ambient air sampling, offering a blurry picture at best. Traffic, construction, industrial processes and even natural dust all contribute to PM2.5 and cannot reliably be controlled in their methodology.
 

(Pg.20 of the LWBP report)

Walking around with modified backpacks does not allow them to distinguish in any way what the source of PM2.5 is in a given area.

Small sample sizes and insufficient testing equipment.

One of the major studies often cited, is by Rohit Chakraborty et al, and based on a sample size of just 19 homes that took measurements using, as they admit, “low-cost air quality monitors” (7)

Manipulated data

They exclude critical data to stack the narrative against wood-burning stoves. For example, comparing the emission rates between wood stoves and HGVs has caused unnecessary concern.

Closer inspection revealed their data excluded brake and engine wear and in fact, just one Euro 6 HGV produces 13 times more PM2.5 emissions than an Ecodesign wood-burning stove over the course of a week’s real-world use. Furthermore, emissions from HGVs are emitted at ground level (nearer head height) while wood smoke is dispersed more safely, higher up via a chimney flue. (8)

3/Claims Based on Their Opinion NOT Fact

In the bottom left-hand corner of every page of the London Wood Burning Project report you can see the following disclaimer:

“This report is the independent expert opinion of the author(s)”

Firstly, anyone can claim to be an expert, however, the key word here is ‘opinion’.

Well, the SIA has commissioned extensive independent research which casts serious doubt on the estimations and ‘opinions’ provided by anti-woodburners (6)

We highly encourage you to read this report undertaken by Dr Amanda Lea-Langton, senior lecturer in Bioenergy Engineering at the University of Manchester:

https://stoveindustryalliance.com/wp-content/uploads/2022/04/22-04-11-Indoor-air-final-V5-AL.pdf

4/ The Official Data is POSITIVE!

 

At the time of writing the original blog post (11/01/2024) on a very cold winter’s day when wood stove usage would typically be higher, here is the PM2.5 picture for the UK taken from DEFRA’s official website.

So, when the anti-woodburners say 17% of emissions. It is 17% of a very low amount in the first place. Then, remember modern wood-burning stoves are just 1-2% of that low amount.

5/ Modern Stoves Equal Lower Emissions with HUGE Benefits

-They produce heat reliably for sustained periods and are unaffected by the weather.

-Allowing them to work in tandem with wind, solar and other green heating solutions. A stove makes these great technologies more viable – They are not in competition with each other.

-Energy Security – a wood-burning stove is an ideal emergency/low-frequency heat source.

-Wood stoves are essential for off-grid, sustainable, eco-friendly living. Perfect for yurts and other tiny home accommodations.

-Wood is a carbon-neutral fuel as it gives off the same amount of carbon whether it is burnt or decays naturally. The carbon released from burning wood is balanced out by the carbon absorbed by the tree during its lifetime.

-Wood fuel can be sourced locally without fracking and deep-sea oil drilling.

-A good quality stove can last many decades and provide an affordable source of heat for low-income households.

-The right to repair. The majority of components used within a Charnwood stove are modular and can be replaced when or if they wear out further extending the life of your stove.

-There are significant well-being benefits from using a wood-burning stove. Read about the Charnwood wellbeing survey and all the amazing benefits of owning a stove for your wellbeing.

_____________

For more information check out the main article:  

Smoke And Mirrors: Exposing The Flawed Data Behind The War On Wood Stoves 

& 

Wood-Burning Stove’s Co-Heating Future (A Nuanced Look At PM 2.5 Emissions)   

 

 

PM 2.5 Perspective! New report on indoor air quality associated with wood burning stoves

charnwoodstoves
17 Jan 2024

The research and analysis show that there are higher levels of PM created inside the home from cooking than from modern wood burning stoves!

Read on to learn more about the report on indoor air quality associated with wood burning and get a new perspective on PM 2.5 in the home.

There has been much debate on the topic of indoor air quality and PM 2.5 emissions in relation to wood-burning stoves over the last few years. To get an accurate picture, the Stove Industry Alliance (SIA) commissioned a literature review looking at studies into the contribution from wood burning stoves to indoor particulate matter (PM). This looked at evidence from over 35 different studies into the impact on indoor air quality in the developed world from solid fuel combustion, including the 2020 study by Chakraborty et al, Indoor Air Pollution from Residential Stoves: Examining the Flooding of Particulate Matter into Homes during Real-World Use.

The report was undertaken by Dr Amanda Lea-Langton, senior lecturer in Bioenergy Engineering at the University of Manchester. We have listed some of the key findings below:

• No scientific evidence found for adverse health impacts from exposure to the indoor air

typically associated with modern, enclosed wood burning stoves

• No association shown between exposure to indoor wood burning and risk of asthma in

developed countries

• Use of modern wood burning stoves may help to improve air quality inside the home due to

the natural draught created during wood stove operation that pulls air from the room into the

appliance and from outside

• Other sources of particulate matter in the home, such as cooking, can release much higher

levels of PM compared to modern, enclosed wood burning stoves, and could therefore have

greater health risk potential

• In one study, oil-based cooking, such as frying food or grilling meat, had peak value PM

concentrations significantly higher than the WHO recommended average 24hr exposure limit

• In the same study the Ecodesign wood burning stove indoor air quality averages during

operation were below the WHO recommended limits

Not all stoves and wood-burning are equal!

A common misconception is that the use of wood-burning stoves is detrimental to our health due to their contribution to indoor air quality. This assertion often comes from conflating the performance of modern Ecodesign stoves with less sophisticated solid fuel combustion practices common in the developing world.

The findings in this report do not support this assertion and one broad literature review by a public body indicated that there was no association shown between exposure to indoor woodburning and the risk of asthma in developed countries. Additionally, a Manchester University study conducted in 2021 found that cooking, candles, incense, and hairspray all gave higher PM10 and PM2.5 readings than the use of a modern Ecodesign stove.

Also find out how domestic indoor wood-burning produces reduced emissions.

 

Wood-burning stove PM 2.5 best practices

The report recognises that indoor PM exposure for wood burning stove users peaks when refuelling and during ash removal. Andy Hill, chair of the SIA, advises ways that this can be easily mitigated:

“When refuelling a wood burning stove it is important to follow the manufacturer’s instructions. Refuel when the fire-bed has become glowing embers. Never simply swing the door open as this will lead to a rapid change in pressure within the appliance and may trigger some small escape of fumes (what was described as “flooding” in the 2021 Chakraborty study). Instead, by releasing the door catch and opening the door very slightly the air pressure will settle within a few seconds, then the door can be opened fully and more logs added. Similarly, with a little care any dust escape can be minimised during ash removal.”

The report gives information about reducing emissions even further:

“…those using wood burners could reduce their emissions by following improved firing and fuel practices. Recommendations for firing included the use of kindling or natural cubes rather than paper, cardboard or newspapers; stacking according to the Swiss method with largest logs at the bottom; wood moisture to be between 10-20% and use of a hard wood fuel (e.g. beech, oak) rather than softwoods or prunings. This led to improved combustion and hence lower emissions so reduced the risk of exposure.”

Explore more on why burning the right wood protects the environment.

 

Modern wood-burning stoves are safe

This report gives valuable insight into how everyday household activities contribute to PM 2.5 emissions in the home. It accurately highlights the major contributors and crucially shows there is no scientific evidence linking adverse health impacts from exposure to PMs in indoor air and the use of modern wood burning stoves.

When considering the many benefits of a modern wood-burning stove to wellbeing, the fuel crisis, and environment it is wonderful news that people can now confidently enjoy all these benefits safely.

 

Why Choose Us?

At Charnwood Stoves, our team stand at the forefront of innovation, committed to elevating your home environment. Our unwavering dedication to excellence is exemplified in every aspect of our products. Choose us for a harmonious blend of cutting-edge technology, sustainability, and design finesse.

Experience peace of mind knowing that our wood burning stoves prioritise indoor air quality. The recent PM report showcased our commitment to transparency and your well-being. Trust Charnwood Stoves for the most reliable, efficient, and environmentally conscious heating solutions.

With Charnwood Stoves, you’re not just selecting a product; you’re embracing a lifestyle. Join a community that values craftsmanship, functionality, and a greener future. Elevate your living space with Charnwood Stoves — where quality meets a passion for a healthier, warmer home.

 

The report, which can be downloaded in full via the link below, was commissioned by the SIA and has been independently peer reviewed by Prof Alan Williams, CBE FREng FRSC, Emeritus Professor in Combustion, The University of Leeds.

https://stoveindustryalliance.com/wp-content/uploads/2022/04/22-04-11-Indoor-air-final-V5-AL.pdf

The Most Popular Wood-Burning Stove Accessory (Based on 1000+ Survey Results)

charnwoodstoves
17 Jan 2024

This blog is a review and closer look at the results of the Charnwood Stove Accessory Survey 2022. A survey of over 1000 wood-burning stove users with the aim of better understanding stove accessory preferences and usage.

We were delighted to receive such an incredible response from our engaged wood-stove community. From discovering the most popular stove accessory to users’ other must-haves and how easy people find them to use – many interesting and useful insights were gained!

Read on to learn about the Charnwood Stove Accessory Survey and the other top wood-burning stove accessories!

The results

A woodstove is a wonderful addition to the home. Those of you who are new owners will be starting to notice how much more you are enjoying the colder evenings than before. What you will also notice is the ritual of building and maintaining a fire is much easier with the right tools.

The answers to the following questions will provide some ideas about which stove accessories you should consider next!

What is the most popular wood-burning stove accessory?

The results in the graph above show that the trusty Stove Pipe Thermometer is the most popular wood-burning stove accessory with 29% of the vote. 99% of respondents also found it easy to use.

Stove Pipe Thermometer

It’s perhaps no surprise that the trusty Stove (Flue) Pipe Thermometer is the favourite accessory of stove users. It is a crucial tool for conscientious wood stove users who prioritise safety and efficiency.

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 a potential fire hazard from 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.

Which of the following do you consider ‘Must Have’ stove accessories?

Here are some quotes from survey participants relating to the top 7 ‘Must-Have’ stove accessories.

Log Storage/Basket

“Having a full wood basket during these crazy days makes me feel safe and secure, whatever happens I know I have heat and hot water and light.”

“Keeps all the logs tidy and looks great beside the stove. Also useful for carrying in logs from the store outside!”

“Add to the aesthetics of the fireplace and is obviously useful for keeping wood supplies topped up.”

“It reminds me of my grandparents’ days as they always had one. It also keeps all my logs safe and tidy away from the children.”

“A good quality basket enhances the look of the stove as well as being practical.”

“My log basket really enhances both the look and the “feel” of my log burner.”

“Keeps my living room very tidy. Really neat and elegant looking item. Sturdy and robust”

“Looks great and saves having to leave the room/ go outside for logs.”

“It adds to the ambient feeling of the room when partially or fully loaded but I suppose more importantly it stops me from having to pop outside too frequently to get more logs, thus letting me enjoy the fire uninterrupted.”

“It saves us fighting about who is going to get more logs when it’s cold!”

For a full range of log holder storage click here!

Stove Pipe Thermometer

“Ensures I always know the temperature my stove is at as to whether I need to add more fuel or calm it down.”

“Makes it so much easier to see if my fire is working at optimum temperature and if I need to adjust amount of wood/air flow.”

“Because it allows us to check whether we are burning at too hot a temperature or too cool. We use both hardwood and softwoods so it would be difficult to know without this vital tool.”

“It means that I always burn my logs in the most economical and environmentally friendly way.”

“I hadn’t realised just how hot the stove gets at full output making this an essential piece of it when topping it up with firewood.”

“It allows me to regulate my stove temperature to maximise the life of the stove and have efficient burning of my wood”

“Ensures the fire is hot enough to keep down the accumulation of creosote. Wouldn’t be without it!”

“I constantly use it to check that the stove is burning in its optimum range for efficiency and to prevent damage and tarring.”

“Invaluable, the little thermometer lets me know when the fire is at optimal temperature and I can then maintain that temperature throughout operation. Probably helps conserve wood too, a great bit of kit.”

“Just gives you so much information in regards to heat output from different fuel types, different wood species, hard woods, softer woods. It really allows you to dial in the stove to get the best from it.”

“This provides us with an idea of how well the stove is burning. For example, over the last two years we have been testing wood purchased from sellers and our own seasoned wood and the stove pipe thermometer gives us a real measure of the heat output (even though most of the time, we can tell the difference ourselves based on how nice the room feels). It also helps us regulate the flu for optimal burn. We learned a lot using the stove pipe thermometer about our stove and the wood we burn.”

“It reassures me that I have the right burn, low emissions and great heat output.”

“As an engineer I love indisputable visual indication of when things are operating correctly! Such a simple device and has definitely altered how we ‘set’ our stove.”

You can get a Charnwood Stove Pipe Thermometer here!

Stove Gloves

“Without them it would be very difficult and dangerous to use the burner”

“Only burn your fingers once to realise they are useful!!!”

“Provides confidence in 100% protection when refueling the stove.”

“Really effective and protects hands while loading logs”

“Just love them, total safety when loading the stove”

“Because it stops me blistering my hands.”

“Offers safety when handling logs, opening & closing stove and promotes attention to avoiding burns.”

“Makes me feel safe when stove has become very hot”

“They just make life so much easier handling logs and placing logs in the stove. No splinters or burns!”

Watch this space – Charnwood stove gloves are on the way!

Dustpan & Brush

“It makes emptying the stove so much easier and cleaner, the house is relatively dust free after clearing.”

“It helps to keep the room relatively dust free”

“Keeping the hearth clean and tidy stops ash and debris, from the stove and wood pile underneath it, from spreading to the floor and messing up the room.”

“Whenever the stove is used it is necessary to clean up small amounts of ash that fall out. The brush and pan are thus used very frequently.”

“The dustpan & brush makes removing the Ash so much easier, our charnwood is used every day from October to February so we collect a lot of Ash which we use as compost. We have other accessories but they don’t see as much use as the pan & brush.”

Poker

“An absolute must have accessory to reposition burning logs and coal.”

“Can re-arrange wood in the stove when going, safely.”

“Brilliant for getting fire going”

“I like poking the fire! Breaking it down to a bed of hot burning wood so I can get more fuel in!”

“I can poke the logs to get maximum burn.”

“Great to look at, well made and does the job perfectly.”

“You can move the logs about to create space and so regulate heat a bit better.”

“It’s so satisfying prodding at red hot embers on a freezing cold evening and feeling the heat on your face”.

“Great quality and have stood the test of time with good amount of use. Quality product.”

“We have a wrought-iron poker made by a friend from years ago..handle in the shape of a hare’s head..love it, wasn’t cheap but a real beauty.”

“Simple basic tool allowing rearranging of fuel to ensure even burning and helping keep glass door clean.”

“Get the fire going. Can push the logs back into the fire so they burn probably.”

Our sister company Bodj offer a beautifully hand-crafted blow poker. Click here for more information!

Ash bin/carrier

“Easy to use. Metal. Compact. Stops dust flying around. Carry handle is useful.”

“Great 4 carrying ashes out on a windy day.”

“Ease of use in keeping ash contained and not flying all over the place.”

“Allows dust free disposal of ash.”

“I have two Charnwood stoves. One has the ash bin/carrier and the other doesn’t. It’s SO difficult to get the ash out of the stove that doesn’t have the ash bin/carrier.”

“It is a safe and clean way of dealing with the only downside to a log burner, the ash.”

“Ease of emptying.”

“Makes it easy to empty ashes no fear of dropping them all over the floor.”

“Makes it more convenient to remove ash over several days without having to fill smaller bin bags thus reducing plastic waste.”

“Easy to use with minimal dust released when moving around can hold at least 1 month’ worth of ash.”

“Simplifies the worst job – cleaning out the ashes and getting them to the bin without being covered in ash from head to foot in a gust of wind. Neat to store, fits the ashcan perfectly and contains the dust when you tip the ashes in.”

Charnwood ash carriers are available here.

Tongs

“Can’t beat a good solid pair of tongs for keeping away from the heat and flames, whilst topping up the stove.”

“I can position logs to maximum effectiveness.”

“It’s a really nice bit of blacksmithing, lovely rams head on the end.”

“Don’t get burnt and can place logs where you want them.”

“Handy for falling logs.”

“Fantastic for putting more wood in when the stove is really hot!”

“Looks rustic and very useful”

“Allows me to place logs where I want them in my stove, but it is also the most universal tool”

Hand forged tongs are available here.

Moisture Meter

Surprisingly only 23% of those surveyed own a moisture meter. We consider a moisture meter a must-have stove accessory to ensure wood is properly seasoned before burning and we urge you to get one!

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.

Here are what some moisture meter owners had to say:

“I know I’m complying with byelaws and also prolonging the life of my Island 2 stove”

“Because I like to know that the logs I’m burning are dry and safe to use”

“Allows us to keep the stove clean by making sure we only burn the driest wood”

“This plus thermometer can’t really be replicated using non specialist tools.”

“It means I know when I can burn the wood that I’ve collected myself from the neighbourhood.”

“Vital for the whole seasoning process.”

“Especially Important given that the cost of kiln dried logs has doubled compared to this time last year!”

“I know I’m complying with byelaws and also prolonging the life of my Island 2 stove”

“Because it saves me burning wood which is too wet. Genuinely get a buzz when I ‘detect’ anything too moist on my meter!”

If you are seasoning your own wood, make sure you test it with a moisture meter before burning. You can get yours here.

Also, explore the top room heating stove accessories.

 

Why Choose Us?

Elevate your wood-burning stove experience with Charnwood Stoves, your trusted partner in warmth and style. Our commitment to excellence shines through in every product, ensuring you receive top-notch quality and functionality. Choosing Charnwood Stoves means selecting the epitome of innovation, as seen in our most popular stove accessory.

Discover unparalleled craftsmanship and design finesse, perfectly complementing your lifestyle. With Charnwood Stoves, you’re not just acquiring a product; you’re investing in a seamless blend of form and function. Join a community that values sophistication, efficiency, and a cosy ambiance. Make the smart choice — choose Charnwood Stoves for a warmer, more inviting home.

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As you can see, there are a whole host of useful stove accessories that will enhance your wood-burning stove experience. For more information on all the stove accessories available, click here.

Finally, thank you to everyone who took part in the survey!

Smoke and Mirrors: Exposing the Flawed Data Behind the War on Wood Stoves

charnwoodstoves
12 Jan 2024

We don’t enjoy having to react to media sensationalism, however, there are times when it feels important to set the record straight. A negative narrative is being unfairly manufactured around the wood-burning stove industry, by anti-woodburning groups such as the ‘London Wood Burning Project’ and ‘Clean Air Hub’. Their campaigns repeatedly use misleading claims and stats to scare the public and they refuse to answer questions directly when challenged.

Therefore, we feel it is a duty to set the record straight, so people don’t succumb to the haze of misleading information out there. In this blog, we will shed light on some of the flawed data and unfair generalisations anti-woodburning groups are using.

What do they mean by wood-burner?

  

The campaigns paint a distorted picture, often using anxiety-inducing imagery and negative attention-grabbing headlines based on sweeping generalisations and weak or inaccurate data. They continue to mislead the public using stats that lump modern wood-burning stoves in with outdated, inefficient models, open fires and bonfires. It’s like saying cyclists are equally to blame for traffic congestion/emissions as lorries and private cars just because they all use wheels!  

They combine emission sources for a more impactful number, and then claim 17% of London’s emissions come from ‘domestic wood burning’ or ‘wood burners’. Catch-all terms the public understandably associate most readily with wood-burning stoves – especially because they create ad campaigns which prominently feature images of wood stoves. However, the actual contribution of modern wood-burning stoves is estimated by the UK government’s official figures at just 1-2%! (1)  

Differentiating between wood-burning practices is vital for progress  

Firefly London points out: “The irony of the billboard placement is that London’s tube network has appalling air quality, with PM 2.5 readings peaking at 600-700 ug/m3 – that’s 100 TIMES MORE PARTICULATES than an average London street…”

It is essential to differentiate between various forms of wood-burning. Chief Medical Advisor Chris Whitty in his report acknowledges this saying, “For air pollution emissions, there is substantial difference between the different open fire and stove designs, the age of the appliance and how well maintained it is, and the moisture content of the wood, for those who want to burn wood.”(2) 

While Ecodesign-compliant stoves are up to 90% more efficient than an open fire, ClearSkies Level 5 stoves, are even better still. They surpass Ecodesign standards, offering a further reduction in emissions by up to 30%! (3)  

This is where the anti-woodburning strategy is so incredibly counterproductive. In London 70% of wood burning still occurs on open fires. (4) If people were widely encouraged to switch to one of the many modern and efficient wood-burning stoves available, it would massively reduce urban PM 2.5 emissions. Just think, the emissions of 70% of London Wood burning could be reduced by 90%!  

Modern wood-burning stoves could help London reduce open-fire emissions by 90% ! 

 

PM 2.5 comes from such a wide array of natural and man-made sources that a zero-emission world is impossible! The best we can do is reduce them as much as possible while maintaining our ability to heat our homes. That is exactly what modern wood-burning stoves help achieve.   

If improvements were what the anti-woodburning brigade was truly after, it doesn’t make sense to ignore the vast advancements in clean-burn technology now defining modern wood-burning stove heating. They are the ones being ‘careless’. 

PM 2.5 perspective: How stoves can HELP improve indoor air quality 

 

This is also totally misleading. We could draw on our sources, but more powerfully we can draw on the London Wood-Burning Project’s own report as a rebuttal to this one. 

On page 71 of their 127-page report (5), we find the page titled Key Findings. Below are 3 crucial pieces of information from this page:  

1/ Use of the clearSkies Level5 stove (which is Ecodesign compliant) demonstrated some benefits for indoor air quality. Indoor PM2.5 did not increase when adding fuel to the stove once lit… At times there was actually a decrease in indoor concentrations of PM2.5 when adding fuel.  

As we have long pointed out, a properly functioning modern wood stove draws particulates out of the room and up the flue, helping improve air quality and ventilation in the home. The stove used in this study was our Charnwood C-Five.  

2/ Increases in pollutant concentrations may be more affected by participant technique or specific airflow characteristics of an individual appliance, rather than to the type of appliance or fuel.  

We always encourage best stove practices and will continue to do our level best to educate new and existing customers and beyond.   

3/ However, the biggest increases in PM2.5 concentrations indoors did not relate to indoor wood or solid-fuel burning but instead were a result of cooking, especially frying, grilling and use of the oven, and particularly when the extraction fan was not used.  

This really provides perspective on the issue of PM 2.5 in the home. A slice of burnt toast or your Sunday lunch can contribute far more than a wood-burning stove.  

 It’s a shame they don’t plaster these findings on a bus or large poster. 

A lack of scientific rigour 

Imprecise methodology  

“The results were compared to modelled wood and solid-fuel burning emissions to identify areas where the measurements match well with predictions or where measurements may provide evidence of solid-fuel burning that were not predicted by the model.” (pg.9 of the LWBP report)  

They do not sufficiently differentiate between the different sources of ‘solid fuel burning’. Data collection relies heavily on estimations and ambient air sampling, offering a blurry picture at best. Traffic, construction, industrial processes and even natural dust all contribute to PM2.5 and cannot reliably be controlled in their methodology. 

(Pg.20 of the LWBP report)

Walking around with modified backpacks does not allow them to distinguish in any way what the source of PM2.5 is in a given area.  

Small sample sizes & poor testing equipment 

One of the major studies often cited, is by Rohit Chakraborty et al, and based on a sample size of just 19 homes that took measurements using, as they admit, “low-cost air quality monitors” (7) 

Manipulated data 

Data is also often twisted and cherry-picked to bolster a blinkered argument. For example, comparing the emission rates between wood stoves and HGVs has caused much unnecessary concern.  

Closer inspection revealed their data excluded brake and engine wear and in fact, just one Euro 6 HGV produces 13 times more PM2.5 emissions than an Ecodesign wood-burning stove over the course of a week’s real-world use. Furthermore, emissions from HGVs are emitted at ground level (nearer head height) while wood smoke is dispersed more safely, higher up via a chimney flue.  

The SIA say, “ The claims are based on simplistic calculations using permitted rates of emission and do not consider either real world use or non-exhaust emissions. Furthermore, these permitted emissions rates rely on vastly differing measurement protocols and techniques. It should also be noted that there are several unreferenced assumptions, and the report does not appear to have been independently peer reviewed.” (8) 

Expert ‘opinion’  

In the bottom left-hand corner of every page of the London Wood Burning Project report you can see the following disclaimer: 

“This report is the independent expert opinion of the author(s)” 

Firstly, anyone can claim to be an expert in whatever they like, however, the key word here is ‘opinion’.  

Well, the SIA has commissioned extensive independent research which casts serious doubt on the estimations and ‘opinions’ provided by anti-woodburners (6). Experts question the methodologies and point out the lack of robust data used to support their dramatic claims.  

We highly encourage you to read this report undertaken by Dr Amanda Lea-Langton, senior lecturer in Bioenergy Engineering at the University of Manchester:  

 https://stoveindustryalliance.com/wp-content/uploads/2022/04/22-04-11-Indoor-air-final-V5-AL.pdf 

 We have listed some of the key findings below: 

-No scientific evidence found for adverse health impacts from exposure to the indoor air typically associated with modern, enclosed wood burning stoves

-No association shown between exposure to indoor wood burning and risk of asthma in developed countries

-Use of modern wood burning stoves may help to improve air quality inside the home due to the natural draught created during wood stove operation that pulls air from the room into the appliance and from outside

-Other sources of particulate matter in the home, such as cooking, can release much higher levels of PM compared to modern, enclosed wood burning stoves, and could therefore havegreater health risk potential

-In one study, oil-based cooking, such as frying food or grilling meat, had peak value PM concentrations significantly higher than the WHO recommended average 24hr exposure limit

-In the same study the Ecodesign wood burning stove indoor air quality averages during operation were below the WHO recommended limits

 The official data (the truth) is good news!

And how about this for good news? The TRUTH is that UK PM 2.5 emissions have been steadily decreasing over the years despite record stove sales (please see the short video above). This is data taken directly from DEFRA and is a scientific and unbiased representation of the air quality in the UK. Whilst there is more we can all do, the evidence is resoundingly positive. 

At the time of writing (11/01/2024) on a very cold winter’s day when wood stove usage would typically be higher, here is the PM2.5 picture for the UK taken, once again, from DEFRA’s official website.  

https://uk-air.defra.gov.uk/forecasting/ 

So, when the anti-woodburners say 17% of emissions. It is 17% of a very low amount in the first place. Then, remember modern wood-burning stoves are just 1-2% of that low amount. 

Modern stoves equal lower emissions with HUGE benefits 

Next time you encounter someone who questions the benefits of modern wood-burning stoves, here is a list you can reel off! 

1/ They can produce heat for sustained periods and are unaffected by external factors such as the weather. 

2/ Allowing them to work in conjunction with wind, solar and other green heating solutions. A stove makes these great technologies more viable – They are not in competition with each other. 

3/ A wood-burning stove is an ideal emergency/low-frequency heat source. 

4/ Wood is a carbon-neutral fuel as it gives off the same amount of carbon whether it is burnt or decays naturally. The carbon released from burning wood is balanced out by the carbon absorbed by the tree during its lifetime. 

5/ Wood fuel can be sourced locally without fracking and deep-sea oil drilling. 

6/ A good quality stove can last many decades and provide an affordable source of heat for low-income households. 

7/ The right to repair. The majority of components used within a Charnwood stove are modular and can be replaced when or if they wear out further extending the life of your stove. 

8/ Charnwood stoves and packaging are fully recyclable. 

9/ There are significant well-being benefits from using a wood-burning stove. Read about the Charnwood wellbeing survey and all the amazing benefits of owning a stove for your wellbeing. 

Building a Collaborative Path Forward 

The wood-burning stove community’s voice in this debate isn’t just about defending an industry; it’s about ensuring a fair and balanced path towards a cleaner and more energy-secure future. Targeting outdated appliances, promoting responsible practices, and encouraging sustainable forestry practices would yield far greater results for all. 

Modern wood-burning stoves offer many benefits beyond warmth. They provide energy independence, encourage mental wellbeing, support rural communities, and help foster sustainable forestry practices. Responsible utilisation of modern wood-burning stoves can absolutely coexist with clean air initiatives, without compromising the environment. 

We are passionate about building on our 50 years of experience leading developments in the industry and producing the most efficient stoves on the market. We understand why people want to reduce PM2.5 emissions even further and we support doing more to achieve this. That is precisely why we continue to invest significantly in technological advances rather than sensationalist marketing campaigns. 

Thank you for reading and please share if this has resonated with you. 

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Further reading: 

Here is a link to an article which explains why modern wood-burning stoves will continue to be an essential heating solution long into the future. Wood-Burning Stove’s Co-Heating Future (A Nuanced Look At PM 2.5 Emissions)  

 

References: 

(1)https://stoveindustryalliance.com/domestic-indoor-wood-burning-emissions-significantly-lower-than-previously-thought/  

(2)https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1124738/chief-medical-officers-annual-report-air-pollution-dec-2022.pdf 

(3)https://www.clearskiesmark.org/about-us/certification-system-explained/ 

(4)https://www.gov.uk/government/publications/summary-results-of-the-domestic-wood-use-survey  

(5)https://www.imperial.ac.uk/media/imperial-college/medicine/sph/environmental-research-group/London-Wood-Burning-Project-Report_final.pdf 

(6)https://stoveindustryalliance.com/wp-content/uploads/2022/04/22-04-11-Indoor-air-final-V5-AL.pdf 

(7)https://www.mdpi.com/2073-4433/11/12/1326/html 

(8)https://stoveindustryalliance.com/sia-responds-to-wood-burning-stove-and-hgv-emission-comparison/ 

 

 

Is your stove ready for winter?

charnwoodstoves
03 Jan 2024

Now that the winter is in full swing, and the days are darker and colder, many of us are spending more time indoors.

And when the temperature drops, there’s nothing better than hibernating indoors, warm and snug in front of the stove. However, you must make sure that your stove is ready for the winter months.

We’ve created a helpful guide outlining how you can ensure that your stove is ready for winter.

 

Conduct a thorough stove examination

To make the most of your stove and maximise its longevity, it’s important that you conduct regular maintenance checks to ensure that your wood burning stove remains in sound working order, especially during the colder months of the year.

First and foremost, you should conduct a thorough examination, checking the below elements.

 

Clean out the ash pan

Most people begin their wood burning stove winter maintenance by emptying the ash pan. However, it’s important that you ensure that the stove is cold and remember, you should always wear protective gloves when cleaning your stove.

The ash pan can easily be cleaned out by using a small shovel to take the burnt ash from the bottom of the pan and dispose of it in a metal bucket. As a general rule of thumb, you should never keep warm ash indoors as it can cause a build-up of carbon monoxide. At the same time, all ash should be stored for at least 24 hours outside before it is disposed of.

 

Check all air holes are clear

Next, you should check that all air holes are clear and free from any debris buildup. After all, it’s not uncommon for dust, dirt and other elements to accumulate in your stove during Spring and Summer when it is not used as much or at all.

Clearing all air holes will ensure that a vital flow of oxygen can access your fire, optimising efficiency.

 

Check stove rope

Now you should take the time to check your stove rope, which can be found around the seals of your stove doors. If you do spot any sign of damage, when you are opening and shutting the door it should be addressed straight away, especially if you identify any gaps.

 

Remove any flammable objects

Before you start using your wood burning stove again, it’s important that you remove any

flammable objects from the area around your stove including decorations and combustibles such as plastic, wood-based products, carpet, textiles and upholstery.  You will be amazed at how many flammable household items can end up next to your stove when it is not being used.

Also explore how best to prepare for the winter energy crisis with a wood-burning stove.

 

Test your smoke and carbon monoxide alarms

When the time comes to get your stove ready for Winter, you should also test your smoke and carbon monoxide alarms, as it is vital that these are in sound working order.

 

Start to bring in some seasoned wood into your property

Now it’s time to start stocking up on seasonal wood so that you are good to go! Remember to always store your wood in a dry space.

 

Also explore our main reasons why it is essential to have a wood-burning stove during the winter.

 

Why choose us?

Founded in 1972, we are a privately owned, family-controlled, British company specialising in the design and manufacture of high-quality wood burning and multi-fuel stoves. We are committed to providing the highest quality stoves, at the best possible price.

We also have a firm focus on protecting the environment and ensuring our operations are sustainable and responsible.

We operate a policy of caring for the environment in all aspects of the business; from the products we design, to the way we package them, to the way we transport them, to the way we deal with the disposal of waste products, to the vehicles we use, to our choice of raw materials.

 

Get in touch now

If you have any questions about our wood burning stoves, please get in touch with a member of our team today.