The pressurized stove is relatively easy to build, but opperation can be difficult to the beginner. The pressurized jet stove can be more efficient than other stove designs because it eliminates the open fuel chamber. Instead, a small fuel port is utilized to fuel the stove, and is then sealed off. This is the basic pressurized design. It does not include the installation of a thumbscrew. Instead the fuel port consists of 5 small fuel ports. The stove requires a priming pan or priming wick to operate.
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Difficulty rating: 2
1. easy to build
2. does not require a potstand
3. can be more efficient than other designs
1. may be difficult to operate to the beginner
2. requires a priming pan or priming wick
3. difficult to fuel up compared to other designs
Here are the materials required to construct the stove:
2 empty soda cans (preferably made by Ball)
1 needle (slightly thinner than a thumbtack)
1 template sheet for the pressurized jet stove
1 permanent marker
1 pair of scissors
1 hole punch
1 pair of pliers
1 hobby knife (optional)
1. Cut out the jet template and wrap it around one of the cans. Tape the ends, ensuring that it makes a tight fit, as this will aid in the jetting process.
2. Twist the template off and place it on a flat surface with the jets pointing up (the 15mm on the template should be upside down) Slide the can down until it hits the surface.
3. Insert the needle into the jaws of the vise grip. Only leave about 1.5cm of the needle exposed.
4. Start at the seam of the template and start making the jets. Do so until you have made jets all around the can.
5. Cut out the circular template and trim it down so that it fits inside the bowl. Use the thumbtack to make a hole in the center. Now make 4 other holes about 0.5cm from the center hole. Space them out evenly. You can make more holes if you want.
6. Cut out a strip of paper that is 30mm (3cm) high. Wrap it around the can and tape the ends. Ensure that it makes a tight fit, but not so tight as to prevent its removal.
7. Remove the template and place it on a flat surface. Push the can into the template until the can hits the surface. Use the permanent marker to draw a line around the can, using the template as a guide. Remove the template.
8. Use the hobby knife to rough cut the section off. Cut about 1.5cm away from the line. Cut the last bit off with a pair of scissors.
9. Start cutting to the left with the jets pointing up with the scissors.
10. Cut a panel of aluminum from the leftovers of the can. It may help to tape this panel flat on a table or some other flat surface. Cut out the inner wall template. Tape the template onto the panel.
11. Now cut the top and bottom, but do not cut the ends with the tape.
12.Punch the weep holes with the hole puncher. Punch the black half holes and the half holes on the opposite side.
13. Cut the slits on the ends.
14. Now cut the ends off.
15. Now lock the slits together, with the tabs facing inward.
16. Crimp the top section. Sart at one of the jets. The aluminum should be about 0.5cm into the jaws of the pliers. Bend until the pliers hit the oposite side of the top section. Now move to the jet directly oposite of the first crimp. Make a total of 8 crimps, evenly spaced.
17. Insert the inner wall into the top section of the stove. It does not matter which way the weep holes go because there are holes on either side.
18. Now repeat steps 8-11, except this time, use a paper strip that is 20mm (2cm) high.
19. Now, take the assembled top section/inner wall and put it face down on a flat surface. Take the bottom section and place it on the completed top section/inner wall and pop in the "tabs", so that the bottom section slips over the top section.
20. Now using both hands, press the bottom section onto the assembled top section/inner wall evenly. Stop when the bottom section stops sliding. Make sure all sides are even.
The stove is now complete and ready to use.
1. Fill the stove with about 2 tbs or more of alchohol. Simply pour the alcohol in the top dome slowly and wait for the alcohol to drain through the holes.
2. Place stove on primer pan.
3. Drip about 1/2 tbs of alcohol on the primer pan making sure not to get alcohol under the stove, just around it.
4. Light the alcohol in the primer pan.