The water tank was also chosen because is is large enough diameter to fit my camping cast iron Dutch Oven, and a stock pot that I use for boiling corn. This becomes the cooking area "bowl" top to the grill. The bottom section of the tank is cut to about 1 foot tall. It was already cut apart from a solar water experiment I worked on. That water tank that I chose was 16" in diameter. The 20" section will be the "vertical tube", and the 1 ft. Make one about 1 foot, and the other about 20" long. The large diameter pipe needs to be cut into two sections. I found a piece of old farm machinery that fit the bill. It also forms the very end bottom of the grill, which hot coals and asses will fall into. The base needs to be large enough to keep the whole grill from tipping over. Perferations or slotted is ideal.įirst, gather together your materials for the main section of the rocket grill. Plain steel is fine, lower cost alternative.Ģ x pieces of copper or steel tube or pipe, slightly larger diameter and shorter length than the carriage bolts, to use as spacers. Stainless steel is ideal, as these will be exposed to both heat and the elements. This becomes the "bowl" top of the grill and cooking surface area.Ĥ x pieces of small diameter steel pipe, about 6" in lengthĢ x 90 degree pipe elbows of same diameterĢ x pieces of flat material that you like to make side countertop surfacesĪ piece of wood, species of your choice, sized for a lid handle.Ģ x Carriage bolts (about 5" long) with matching nuts and washers. I used 6.5 inch diameter scrap steel pipe. Steel Pipe - Diameter of your choice, but will effect cooking size and fuel rate. I used a scrap steel farm implement disc. This project is made mostly from scrap metal, but will need several other parts.Ī Base. Safety glasses, work gloves, welding gloves, Welding helmet, hearing protection So lets' gather together our tools and materials and get started! This was really my first-ever welding project. While it does require welding, it's pretty straight-forward. This project is mostly simple metal work. (The lid and side tables are also removable for storage and easy packing.) Because it's covered and enclosed, it also qualifies for use as a "backyard fire-pit" in areas that do not allow open fires. That way, it can travel with for camping or tailgating. (And cost good time and money to replace.) There is no piezo-electric starter or other "modern" technology in the grill, which would be prone to failure.ĭespite how it looks, the grill is small and light enough for one grown man to lift into the back of a pickup truck. Unlike an LP grill, the burner will never burn and rust away to nothingness. The grill is designed to not only grill, but also boil, bake, braise, and roast!īecause of the simple design and robust construction, it is nearly maintenance free. Once the the grill is really going, NO smoke comes out the top, only heat, and the grill really does sound like a rocket! It naturally drafts air to maximize combustion. The rocket grill is fired by twigs, wood scraps, wood chips, or nearly anything else you can put in it. This is just one variation of a "rocket stove" - a simple appropriate technology for cleanly burning bio-fuels. way to cook food WITHOUT using fossil fuel L.P. We illustrated all of the various scientific concepts and assisted with the development of the textbook that was later translated into French.Want a D.I.Y. Our close partnership with Creatable every step of the way ensured the projects could be delivered in a classroom environment. We compared various rocket stove designs to more simple open-pit and chimney fireplace designs and found it to burn more of the fuel completely and produce less soot for a similar amount of wood. We designed and tested a variant that could be efficiently built out of the materials that we knew were available to the people of Burundi. Similar cooking fires designed for efficient fuel use and low-smoke output, like the Dakota Fire Pit, have potentially been around for thousands of years. The basic rocket stove concept (having an air flow inlet from below a solid fuel in a fireplace to improve burning efficiency) has been known to the western world since the 1800s. To address this concern in a school setting, we proposed to create a project that improves the efficiency of their cooking fires - more completely burned wood produces less ash and carbon monoxide pollutants, and produces more heat from less fuel.
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