Introduction
Creating an efficient and eco-friendly heating solution for your workshop or garage can be both cost-effective and rewarding. One innovative approach involves repurposing old, discarded water heaters into a powerful double barrel stove. This project not only recycles materials that would otherwise be waste but also results in a highly functional heating appliance that burns cleanly and efficiently, providing warmth during the cold months.
Step 1: Disassemble the Water Heaters
The first phase involves carefully disassembling the old electric hot water heaters to recover their metal tanks. Using appropriate tools such as wrenches and screwdrivers, remove all external components, including insulation, electrical wiring, and fittings. Once the outer shell is stripped away, focus on extracting the tanks with care to prevent damage. These tanks will serve as the primary containers for your stove, so ensure they are intact and free from corrosion or leaks.
Step 2: Prepare the Bottom Tank
Next, select one of the tanks to be the bottom part of your stove. Using a grinder or a heavy-duty cutting tool, carefully cut off a section from the top of this tank. This cut piece will form the base or bottom chamber of your stove. After cutting, thoroughly clean the interior to remove any mineral deposits, rust, or residues accumulated over years of service. Proper cleaning ensures optimal combustion and prevents unwanted odors or blockages during operation.
Step 3: Weld Steel Plates to Form Ends
To create sealed ends for your stove chambers, take a piece of 12-gauge steel plate and cut circular sections matching the diameter of your tanks. Place the upside-down drum or tank on a sturdy work surface and mark the circle on the steel plate. Cut out the circles precisely to enable a snug weld. Repeat this process for both the top and bottom sections. Afterward, clean and polish the tanks to remove any dirt, paint, or rust, ensuring a smooth surface for welding. Carefully grind any rough edges to prevent injury and ensure airtight seals once assembled.
Step 4: Install Support Stack and Connect Tanks
- Cut the Connecting Pipe: Measure and cut a short piece of pipe that will act as the stack bridging the two tanks. The length should be sufficient to connect the tanks securely while allowing space for airflow.
- Add Support Bracket: Weld a sturdy support bracket onto the top of the bottom tank. This bracket will hold the top tank firmly in place, providing stability during use.
- Cut the Hole for the Stack: Mark and cut an appropriately sized hole into the bottom of the top tank. Insert the connecting pipe through this opening, ensuring a tight fit for optimal airflow and gas passage.
Step 5: Attach Exhaust Stack and Air Inlet
- Weld the Exhaust Outlet: On the top tank, cut and weld a six-inch diameter outlet pipe to serve as the exhaust stack. This component facilitates the safe venting of smoke and gases outside the workspace.
- Install the Inlet Pipe: Attach a six-inch inlet pipe extending to the top of the stove. This inlet channel directs airflow across the length of the barrel, promoting complete combustion and maximizing heat extraction from the fuel.
Step 6: Assemble the Double Barrels
With all individual components prepared, proceed to weld the bottom tank to the mid-stack, effectively joining the two chambers. Ensure the welds are airtight to prevent smoke leakage. Additionally, fabricate and attach support legs using scrap pipes or metal rods to stabilize the entire structure. Position these legs evenly to distribute weight and ensure the stove remains steady during operation.
Step 7: Fabricate and Install the Door
The final step involves creating an access door for loading fuel and managing airflow. Cut a suitable opening in the bottom barrel, then weld hinges and a secure door catch onto it. Attach an adjustable air inlet pipe to the door, enabling precise control over oxygen intake, which directly influences combustion efficiency. Incorporate a handle onto this pipe for easy regulation, ensuring safe and convenient operation. Properly sealing the door prevents smoke escape and maintains optimal heat retention.
Conclusion
By following these detailed steps, you can transform discarded water heaters into a robust and efficient double barrel stove. This project not only promotes recycling and sustainability but also provides a reliable heating solution tailored for your workshop or garage needs. Remember to prioritize safety throughout the construction process, and consider consulting a professional for welding and installation if necessary.