Wood burning stoves are versatile heating appliances, but there’s often a common question that arises: can you use coal in a wood burning stove? In this article, we’ll provide a clear and concise answer, explaining the technical aspects and practical considerations for both technical enthusiasts and the everyday homeowner.
The Short Answer
Yes, you can use coal in a wood burning stove. However, it’s essential to understand the implications, advantages, and limitations of using coal in this context.
Types of Coal for Stoves
There are primarily two types of coal used in wood burning stoves:
Anthracite Coal: Also known as hard coal, anthracite is the most suitable type of coal for wood stoves. It burns cleanly, producing minimal smoke and a long-lasting, consistent heat. Anthracite coal is often used as a supplemental heat source or as the primary fuel in coal stoves.
Bituminous Coal: Bituminous coal, or soft coal, can be used in wood stoves but is less ideal than anthracite. It tends to produce more smoke and requires more maintenance due to its higher ash content.
Considerations for Using Coal in a Wood Stove
Before you start using coal in your wood burning stove, here are some essential considerations:
Stove Design: Check your stove’s manufacturer guidelines and design specifications. Some stoves are explicitly designed to burn both wood and coal, while others are optimized for wood only. Using coal in a wood-only stove may void your warranty or damage the appliance.
Grate System: Coal burns differently than wood, requiring a grate system that accommodates the needs of coal combustion. Some stoves come with adjustable grates to facilitate the burning of different fuel types.
Air Control: Adjust the stove’s air intake and dampers to regulate the airflow. Coal combustion generally requires less oxygen than wood, so proper control is crucial for efficiency and safety.
Fuel Storage: Store coal in a cool, dry place to prevent moisture absorption, which can reduce its combustion efficiency.
Safety Concerns: Coal-burning stoves produce carbon monoxide (CO) gas, which requires proper ventilation to avoid health hazards. Install a CO detector in the room where the stove is used for safety.
Advantages of Using Coal
While coal may not be as popular as wood for heating, it has some advantages:
Consistent Heat: Coal burns longer and more steadily than wood, reducing the need for frequent refueling.
Efficiency: Coal has a higher energy density, meaning it provides more heat per unit of volume.
Less Maintenance: Anthracite coal produces fewer ashes and creosote buildup than wood, reducing the need for cleaning.
Conclusion
In summary, using coal in a wood burning stove is possible, but it comes with specific considerations and should be done in compliance with your stove’s design and safety guidelines. If you choose to burn coal, it’s essential to use the appropriate type (preferably anthracite) and adjust your stove’s settings accordingly. By understanding these technical details and adhering to safety practices, you can use coal as a supplementary or primary fuel source in your wood stove, enjoying the benefits of extended burn times and efficient heating.