DIY Rocket Stove Designs – Mother Earth News

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This rocket stove took Muhammet Sel a few hours, but it will bring the water to a boil in less than 10 minutes!

Photo by Muhammet Sel

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This super portable rocket stove is just perfect for camping.

Photo by John Fischer

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The space between the inner wall of the chimney and the outer wall should be filled with earth, sand or other heat resistant material.

Photo by Muhammet Sel

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Muhammet Sel calls his completed project the “space shuttle” because of its color, but also because of its impressive heat output.

Photo by Muhammet Sel

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The central “H” of this rocket stove design creates a combustion chamber when topped by another block.

Photo by Attainable-Sustainable.net

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The finished product is simple, but it can reject a surprising amount of heat.

Photo by Attainable-Sustainable.net

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The metal grid allows the feed chamber to separate into fresh wood and coal bed.

Photo by Ravi Deo

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Deo’s finished product is an attractive focal point for the backyard.

Photo by Ravi Deo

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Made from a box of popcorn, this rocket stove demonstrates the wide applicability of the rocket stove design.

Photo by Fred Erdmann


I made my first rocket stove from three cinder blocks, a few pieces of paving slab, a rusty box, and a brick that I pulled from an industrial landfill by the Kalamazoo River. It was free, tinkered with, and as ugly as it gets. My second rocket stove was made from the same materials and didn’t look much nicer. But when it came time to feed a starving team of garden guerrillas, both stoves would light easily, burn very hot, and only use a few wooden sticks each!

My experience is not surprising because the designers of Rocket stoves aim for nothing less than radical efficiency – the best of these stoves burn minimal wood and produce little ash, smoke and excessive heat. Rocket stoves achieve their efficiency with DIY simplicity rather than complex engineering or expensive manufacturing. This, too, is intentional: Ianto Evans and Larry Winiarski designed the first rocket stove in the 1980s for woodstove cooks in the developing world, where inefficient use of firewood often contributes to deforestation and loss of life. massive pollution.

The central “elbow” design of a rocket stove is fundamental to its efficiency. Similar to traditional fireplaces, a rocket stove chimney, often referred to as a “firebox,” creates a draft, but the elbow moves the cooking surface upward (away from fire and coals) over the chimney vent. . While this placement would cause problems for traditional stoves, the rocket stove produces minimal smoke. Rocket stoves pull a large stream of oxygen-rich air from under a fuel rack in the horizontal section of the elbow, over hot coals, through flaming sticks, and up the firebox to the bend. ‘to the cooking surface. While all rocket stove designs use the same basic elbow pattern, the creators continue to push the limits of performance and efficiency with improved chamber insulation, more efficient use of fuel and temperatures. higher combustion rates. Have you wanted to find out how to build a rocket stove for your own property or your back patio? Here are five rocket stove designs that anyone with basic DIY skills can create.

DIY rocket stove for camping

John Fischer packs his portable rocket stove every time he walks the trails outside the German city of Stuttgart. By designing a removable feed tube, firebox, and grill grate, he produced a rocket camper stove that folds up just like his tent.

Materials: Large pressurized container; 4 pieces of scrap for power shaft; insert the tray; 2 metal legs; 2 nuts, washers and bolts; pointed head bolt; short cable.

• Completely empty a pressure container and measure its length and diameter.

• Make a square feed shaft from scrap metal so that the “hook” of the elbow allows 1/4 inch to 1/2 inch on each side, and so the shaft is about 1/4 of the way up. total length of the cartridge.

Cut off the top of the canister and drill a hole the size of your wood supply tree in the side.

• Shape a power shaft insert, such as an HVAC vent cover or cut-out cooking tray, and place it in the vent at the bottom of the shaft to allow unobstructed airflow. .

• Use nuts and bolts to attach 2 support feet to the end of the power shaft to create a slight advance angle and correct for unevenness in the ground.

• Weld a long pointed head bolt to the bottom of the tank for added stability.

• Form the grill grid by notching 2 pieces of angle iron so that they fit together at a 90 degree angle.

• Cut the bottom corners of the grate to accommodate it in the firebox.

• Paint the entire stove with high temperature paint.

• For more stability, add a notch at the top of the feed tube and the corresponding side of the combustion chamber. Measure a short cable to cross this gap and secure it with crimped cable ends.

See detailed steps with photo and video support.

“Space shuttle” cooker

With little more than a welder and junk, Muhammet Sel made a beautiful rocket stove in Turkey. He nicknamed the finished project the “space shuttle” because of its color, but also because of its impressive heat output. The design of this wood-burning stove incorporates a 1-inch insulating sleeve, which Salt fills with soil.

Materials: Pipe 60 inches long and 4 inches by 4 inches; 29 by 4 inch sheet metal, 16 gauge.

• Cut a length of 4-inch by 4-inch square pipe into 2 equal sections at a 45 degree angle. One of them will serve as a feed shaft and the other as a combustion chamber.

• Cut a flat shelf for the power shaft that extends along the pipe to the small side of the corner.

• Weld the shelf to the supply shaft to separate approximately 1/4 of the pipe for the air flow.

• Weld the feed shaft to the combustion chamber to form a 90 degree angle.

• Attach a bottom plate that extends 1 to 2 inches past the sides of the combustion tube.

• Cut a faceplate to fit around the power shaft and secure it.

• Cut out a back plate and 2 side plates which will completely enclose the combustion chamber. To attach.

• Fill the insulation area between the combustion chamber and the plates with earth or sand.

• Cut out an upper part that surrounds the insulation space, but leaves the combustion chamber unobstructed.

• Smooth all your welds with an angle grinder.

• Attach 3 or 4 solid flat top bars to the baking rack. These bars must allow sufficient air circulation under the cooking surface to maintain the draft.

• Apply a coat of paint at high temperature.

Find more information and photos about the space shuttle.

Rocket stove in concrete blocks

Colleen Codekas’ take on the Simple Cinder Block Stove includes a sturdy base that would be right at home in any backyard, fishing, or camping spot. To cook on this utilitarian design, load wood into the top core of the vertical block (opening) and cook on the front core of the horizontal block.

Materials: 4 concrete pavers; 2 breeze blocks; brick; grill grid.

• Lay out 2 concrete pavers in a “T” shape to form the base of your stove.

• Lay 1 concrete block horizontally and lay another one vertically on the paving stones. Place a brick on top of the middle section of the horizontal cinder block. Square the joint.

• Place 2 pavers on their edges above the side walls of the base cinder block. This should form an “H” when viewed from above (pictured far left).

• Overcome the “H” with the last concrete block (photo on the left).

• Place a grill rack on top.

Learn more about the Cinder Block Rocket Stove.

1 hour British brick stove

Ravi Deo spent about an hour building this sturdy rocket stove in his suburban London backyard, but only because he wanted it completely level. If you’re not that specific, you could grill in half an hour. This permanent setup is sure to be a hit at backyard barbecues.

Materials: Concrete paving slab; bricks; metal slat; grill or oven rack.

• Install a concrete paving slab (17 inches on each side or more) so that the top is level with the ground.

• Arrange the bricks in the shape of a horseshoe on the slab and lay a metal slat on top.

• Add a second layer of horseshoe, sandwiching the edges of the batten between the layers.

• Add a layer of four-sided bricks on top of the second horseshoe for the base of the fireplace.

• Continue to add layers, alternating seams, to build the fireplace to full height.

• Place an old grill or oven rack on top.

Find out more about the British Brick Stove.

Homestead Popcorn Skillet

Fred Erdmann’s rocket stove is a real piece of “found materials”. Construction begins with a box of popcorn which, when filled with sand, gravel, or soil, provides more than enough insulation for complete combustion. Erdmann’s rocket stove produces enough heat to boil vegetables or seafood during the cold, humid nights on his coastal Washington state property.

Materials: Large metal popcorn box with lid; 6 inch diameter metal elbow; 6 inch diameter stove pipe; metal screws or high temperature metal epoxy; grill rack; 3 or 4 legs.

• Cut two 6-inch holes in the popcorn box – 1 on the side for the elbow and 1 on the top for the stove pipe.

• Secure the elbow to the stove pipe with metal screws or high temperature metal epoxy.

• Fill the container with an insulating material (sand or earth).

• Secure the cover to the box using metal screws or high temperature metal epoxy.

• Shape a grill grid to fit across the hole in the lid.

• Cut a strip of metal, wrap the top cover and secure it to form a windbreak. (Optional)

To learn more about building this unique and inexpensive cooker, follow these instructions.

Posted on Sep 29, 2016


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