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How can you reduce emissions from wood stoves?

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Wood stoves are a popular and cozy way to heat your home, but they can also produce harmful emissions that affect your health and the environment. Wood smoke contains fine particles, carbon monoxide, and other pollutants that can worsen respiratory and cardiovascular conditions, as well as contribute to climate change. Fortunately, there are some simple steps you can take to reduce emissions from your wood stove and enjoy a cleaner and greener fire.

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John Tepes

at Spring Air Systems Inc.

1 Choose the right stove

Not all wood stoves are created equal. Some models are more efficient and less polluting than others. Look for wood stoves that are certified by the Environmental Protection Agency (EPA) or a similar agency in your country. These stoves meet strict standards for emissions and efficiency, and can reduce smoke by up to 90% compared to older or uncertified stoves. You can also check the label or the manufacturer's website for the stove's emission rate, which should be less than 4.5 grams per hour for non-catalytic stoves and less than 2.5 grams per hour for catalytic stoves.

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2 Use dry and seasoned wood

The quality of the wood you burn affects how much smoke your stove produces. Wet or green wood has a high moisture content, which makes it harder to ignite and burn, and creates more creosote and smoke. Dry and seasoned wood, on the other hand, has a low moisture content, usually below 20%, and burns more efficiently and cleanly. To ensure your wood is dry and seasoned, split it into small pieces, stack it in a covered and ventilated area, and let it dry for at least six months before using it.

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Adam Taylor

Chairman - BESA IAQ Group | CEO - ARM Environments | AirRated AP
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The amount of time required to season wood varies by tree species. Ash as a green wood has a low moisture content, whereas Oak takes a significantly longer time to dry out.

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3 Follow proper lighting and burning practices

How you light and burn your wood stove can also make a difference in reducing emissions. Avoid using too much paper, cardboard, or other materials to start the fire, as they can create excess smoke and ash. Instead, use a small amount of kindling and fire starters, such as wax or wood shavings. Once the fire is going, keep the stove's air supply fully open for at least 15 minutes, or until the wood is charred. This allows the fire to reach a high temperature and burn more completely. Then, adjust the air supply to maintain a moderate fire, with bright flames and little or no visible smoke. Avoid overloading the stove or damping down the fire too much, as this can cause smoldering and incomplete combustion.

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Adam Taylor

Chairman - BESA IAQ Group | CEO - ARM Environments | AirRated AP
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Pre-heating the flue before lighting the main fuel by burning paper at the top part of the flue will reduce the amount of particle emissions released into the room during start-up.

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4 Maintain your stove and chimney

Regular maintenance of your wood stove and chimney can help prevent problems that can increase emissions and pose fire hazards. Inspect your stove and chimney at least once a year for any cracks, leaks, or damage, and repair them as soon as possible. Clean your stove and chimney at least once a year, or more often if you use your stove frequently or burn wet or unseasoned wood. You can hire a professional chimney sweep or do it yourself with the right tools and safety precautions. Cleaning your stove and chimney removes creosote, soot, and ash that can build up over time and reduce the airflow and efficiency of your stove.

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5 Consider alternatives or upgrades

If you want to reduce your emissions even further, you may want to consider switching to a different heating source or upgrading your wood stove. There are many alternatives to wood stoves that are more energy-efficient and environmentally friendly, such as heat pumps, pellet stoves, or solar panels. These options can save you money on heating costs and reduce your carbon footprint. If you prefer to stick with your wood stove, you may want to upgrade to a newer and more advanced model, such as a gasification or pellet wood stove. These stoves use a secondary combustion process that burns the gases and particles that would otherwise escape as smoke, resulting in lower emissions and higher efficiency.

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6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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John Tepes

at Spring Air Systems Inc.
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It is also possible to use a water wash hood with a cold water mist to knock out some of the particulate before it gets exhausted. In conjunction with the cold water mist adding a pollution control unit or electrostatic precipitator will further reduce the emissions.

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Adam Taylor

Chairman - BESA IAQ Group | CEO - ARM Environments | AirRated AP
举报内容
It is possible to add an electrostatic filter to a flue to reduce particle emissions. The filter unit is cleaned as part of normal sweeping. These are a requirement in some parts of the world.

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How can you reduce emissions from wood stoves?

1

2

3

4

5

6

1 Choose the right stove

2 Use dry and seasoned wood

3 Follow proper lighting and burning practices

4 Maintain your stove and chimney

5 Consider alternatives or upgrades

6 Here’s what else to consider

Environmental Services

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How can you reduce emissions from wood stoves?

1

2

3

4

5

6

1 Choose the right stove

2 Use dry and seasoned wood

3 Follow proper lighting and burning practices

4 Maintain your stove and chimney

5 Consider alternatives or upgrades

6 Here’s what else to consider

Environmental Services

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感谢您的反馈

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