Flue dampers, also known as stove pipe dampers or draft regulators, are essential components of wood burning stove systems. They serve a specific function in controlling the airflow and draft within the stove and chimney. In this article, we will provide a clear and concise understanding of flue dampers for wood burning stoves.
Purpose of Flue Dampers
Flue dampers are designed to regulate the flow of air and gases within the stove’s combustion system. Their primary purposes are:
Control Combustion: Dampers help control the rate of combustion by adjusting the airflow to the fire. This allows you to fine-tune the stove’s performance, achieving the desired heat output and burn duration.
Increase Efficiency: By controlling the draft, dampers help optimize the stove’s efficiency. Proper regulation of airflow ensures that combustion gases spend more time in the stove, allowing for more complete burning and heat extraction.
Types of Flue Dampers
There are two main types of flue dampers used with wood burning stoves:
In-Stove Dampers: These are located inside the stove, often near the stovepipe outlet or in the firebox. They are usually operated by a lever or knob on the exterior of the stove. In-stove dampers directly control the airflow inside the stove.
Stovepipe Dampers: These are installed in the stovepipe, typically closer to the chimney or flue exit. They are operated by a handle that protrudes from the stovepipe. Stovepipe dampers primarily influence the draft in the chimney.
How Flue Dampers Work
Flue dampers control airflow by partially obstructing the flue or stovepipe, creating resistance. This resistance affects the draft within the stove and chimney, allowing you to control the burn rate and heat output.
Closed Position: When the damper is closed, it restricts airflow, reducing the oxygen supply to the fire. This slows down combustion, resulting in a cooler fire and longer burn time.
Open Position: When the damper is fully open, it allows maximum airflow, promoting a hotter, more intense fire and faster burn rates.
Proper Use and Safety
Here are some key considerations when using flue dampers with your wood burning stove:
Always follow the manufacturer’s guidelines for your specific stove and damper type.
Avoid closing the damper too much, as this can lead to incomplete combustion, increased creosote buildup, and reduced efficiency.
Regularly inspect and clean your damper to ensure it operates smoothly.
Ensure your chimney and stove are properly maintained to avoid excessive creosote buildup, which can be a fire hazard.
Consult a professional if you’re unsure about the correct usage and maintenance of your wood burning stove and damper system.
In conclusion, flue dampers are important tools for controlling the combustion process in wood burning stoves. When used correctly, they can enhance the stove’s efficiency and heating performance. However, it’s crucial to understand the specific type of damper you have and how to operate it according to the manufacturer’s recommendations to maximize its benefits while ensuring safety.