A homemade stove pipe heat reclaimer is a cost-effective way to increase the efficiency of your wood-burning stove. In this article, we will dive into the technical details of how to build one, its operation, and its advantages. Whether you’re a DIY enthusiast or a homeowner looking to maximize your stove’s performance, this information is for you.
The Basics of a Stove Pipe Heat Reclaimer
A stove pipe heat reclaimer, also known as a heat exchanger or flue heat recovery system, is a device that captures excess heat from your stove’s exhaust gases before they exit through the chimney. This reclaimed heat is then circulated back into your living space, enhancing the overall heating efficiency.
Building Your Homemade Stove Pipe Heat Reclaimer
Here’s a step-by-step guide on how to build a simple and effective stove pipe heat reclaimer:
Materials You’ll Need:
- A section of black stovepipe, typically around 6 inches (15 cm) in diameter and of sufficient length to accommodate your reclaimer design.
- A rectangular metal heat exchanger or metal ductwork, available at most hardware stores.
- Heat-resistant gasket sealant.
- Heat-resistant paint (optional).
- Screws or metal strapping for securing the heat exchanger to the stovepipe.
Steps:
Design Your Heat Exchanger: Measure the available space on your stovepipe and design your heat exchanger to fit this space. It should have multiple parallel metal plates or fins to maximize heat exchange.
Assemble the Heat Exchanger: Secure the plates or fins in a rectangular shape using screws or metal strapping. Ensure that the assembly fits comfortably around the stovepipe.
Attach to the Stovepipe: Position the heat exchanger on the stovepipe at a safe distance from the stove. Use gasket sealant to create an airtight connection. Make sure it’s well-secured to the pipe.
Test and Paint (Optional): Before firing up your wood stove, you may want to test the heat reclaimer’s position and efficiency. If it works as expected, you can paint it with heat-resistant paint to improve its appearance.
How a Stove Pipe Heat Reclaimer Works
The stove pipe heat reclaimer operates on the principle of heat exchange. As hot exhaust gases pass through the reclaimer, they transfer their heat to the metal plates or fins. The reclaimer’s surface area and contact with the hot gases determine the efficiency of heat transfer.
Advantages of a Homemade Stove Pipe Heat Reclaimer:
Increased Efficiency: By reclaiming heat that would otherwise be lost up the chimney, your wood stove becomes more efficient, requiring less wood for the same amount of heat.
Energy Savings: A more efficient stove means less firewood is consumed, resulting in long-term cost savings.
Environmental Benefits: Burning less wood reduces your carbon footprint and lessens the impact on the environment.
Improved Comfort: A more efficient stove evenly distributes heat throughout the room, making it cozier.
Conclusion
A homemade stove pipe heat reclaimer is a practical addition to your wood-burning stove setup. By capturing and recycling heat that would otherwise be wasted, it enhances efficiency and provides cost savings. Whether you’re a seasoned DIY enthusiast or new to wood stove modifications, this simple project can make your heating system work smarter, not harder.