Converting a wood burning stove to burn coal is a practical option for those seeking an alternative and efficient source of heat. In this guide, we’ll provide a clear and concise overview of the technical details, benefits, and considerations involved in making this conversion.
Technical Details
Differences Between Wood and Coal Stoves
Before you proceed, it’s essential to understand the differences between wood and coal stoves:
Combustion Style: Wood stoves are optimized for open combustion, while coal stoves have a closed or "airtight" design, which regulates airflow and burn rate more precisely.
Grate Design: Coal stoves typically have a grate system designed to allow airflow from underneath, whereas wood stoves have a solid base to support the burning wood.
Size and Shape of Fuel: The size, shape, and density of coal are different from wood. Coal requires a specific fuel bed design and feeding method.
Benefits of Converting to Coal
There are several advantages to converting your wood burning stove to coal:
Efficiency: Coal stoves are highly efficient, and the fuel provides more consistent and longer-lasting heat compared to wood.
Extended Burn Times: Coal can burn for hours without frequent refueling, making it a convenient heating option.
Cost-Effective: In some regions, coal can be more affordable than firewood, offering potential cost savings over time.
Reduced Maintenance: Coal produces fewer ashes and creosote compared to wood, reducing the frequency of cleaning your stove and chimney.
Considerations When Converting to Coal
Here are some important considerations when making the switch:
Stove Compatibility: Not all wood stoves are suitable for coal burning. Check with the stove manufacturer or consult a professional to determine if your stove can be converted.
Grate Installation: You may need to install a coal grate system if your stove doesn’t already have one. This is essential for proper coal combustion.
Chimney and Venting: Ensure that your chimney and venting system are suitable for coal. Coal stoves require robust, insulated chimneys to handle the higher temperatures.
Coal Type: Different coal types, such as anthracite and bituminous, require specific stove configurations. Make sure your stove is appropriate for the coal type available in your area.
Learning Curve: Using a coal stove may require an adjustment period, as it operates differently from a wood stove. Learning to control the burn rate and draft is essential.
Storage and Handling: Coal needs proper storage to keep it dry and prevent contamination. Be prepared for the additional task of handling coal.
Conversion Steps
Converting your wood stove to burn coal typically involves the following steps:
Grate Installation: If your stove lacks a coal grate, install one according to the manufacturer’s instructions.
Chimney Check: Ensure your chimney and venting system are suitable for coal and meet local building codes.
Adjust Airflow: Coal stoves require precise control of the air intake to regulate combustion. Adjust the stove’s dampers and vents as needed.
Fuel Bed Preparation: Arrange the coal in the stove with sufficient airflow underneath to facilitate proper combustion.
Learn Burn Control: Understand the nuances of controlling the coal stove’s burn rate, which may require practice and patience.
Conclusion
Converting your wood burning stove to burn coal can provide a more efficient and cost-effective heating solution. However, it’s essential to understand the technical details and considerations involved to make a successful transition. By ensuring stove compatibility, addressing chimney requirements, and familiarizing yourself with coal’s specific burning characteristics, you can enjoy the benefits of a coal-burning stove while staying warm and cozy during the colder months.