![]() Total cooking time, from start of fire to dousing: about twenty minutes. Total water to put out the fire: less than a cup. ![]() Total fuel to scramble an egg: the equivalent of an 18 inch 2 x 4. Then I raked the live coals out (obviously, I didn’t want to pour water directly on the bricks, which could crack them), and poured a little water on them. ![]() I pulled out the big pieces of fuel, and doused their burning ends in a can of water. The heat was just right for scrambling an egg, and the pan heated fairly evenly.īy the time I ate my scrambled eggs, the fire had died down quite a bit. I pulled the pan off the fire, broke an egg into it, then scrambled the egg. The fire wasn’t quite hot enough, so I put in another stick of fuel, and soon the butter was sizzling, and even turning brown. Since I couldn’t find any metal of the right diameter, I rested the frying pan on two pieces of wood, trying to get the flames and hot gasses to spread out across the entire bottom of the pan. Once the fire was going strong - which took seven or eight minutes - I got ready to cook. The fuel burns pretty quickly, and you have to keep pushing it into the combustion chamber, adding new fuel as needed. The rocket stove needs you to pay attention to it. When the fire was burning well, I began feeding 3 to 4 pieces of fuel in from the bottom, adjusting the air intake gap as needed to get a hot flame. To light the stove, I balled up a piece of paper and dropped it down the center hole, dropped some shavings, small scraps of wood, and slightly larger scraps of wood on top, then dropped a lighted match in. Specifically, I used nominal fifteen 8 x 2-1/4 x 4 inch clay bricks, and one 8 x 1 x 4 inch clay brick, as shown in the sketch below:įor fuel, I split an 18 inch long 2 x 10 into finger-sized pieces. This stove is based on Larry Winiarski’s 16 brick stove, but instead of using adobe bricks I used clay bricks commonly available at masonry supply houses and building supply centers. So I spent some time this week building and using a simple rocket stove made of 16 bricks. Last week in class, we put together a simple brick rocket stove but couldn’t get it to light. Not really something we need in the first world, except in disaster situations, but a huge advance for the developing world. Rocket stoves use biomass to cook, but are much more efficient than traditional cooking fires, and because they’re more efficient produce fewer pollutants such as smoke and harmful gasses. Larry Winiarski and colleagues at the Aprovecho Research Center. Now we’re experimenting with rocket stoves, designed originally by Dr. In our middle school ecojustice class, one of the things we’re doing is experimenting with alternative low-cost, low-impact cooking methods, such as a solar oven made out of cardboard.
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