Tin Can Rocket Stove on Pellets (gravity Fed)
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Tin Can Rocket Stove on Pellets (gravity Fed)
Using my old can rocket stove, a simple one using rockwool core insulation (I made it inspired by one instructable and you can find a lot here) I decided to make a little improvement by adding a gravity fed pellet burner.
Supplies
The old can rocket stove.
A few more cans.
One piece of expanded metal mesh
The Old Thing
I´m not going thru the process of making the stove itself because it is already very well documented in instructables. I´m jus leaving some pictures of the materials, the stove being use and after quite a few hours of use (pretty burnt and beaten up). Anyway, I used the same stove and just added up the pellet burner and "hopper".
Assembling It
I used a round tip stick to form the metal mesh into a kind of a bowl to hold the pellets inside and to provide enough surface area so it can burn. The cans are only fitted together tightly so they don't fall apart. I used a smaller diameter can to use vertically and hold the pellets, a larger one horizontally to fit the old stick burner, and it leads to a larger one vertically, I guess we can call it the chimney, where the pot sits.
The Thing Working
Here we can see it burning. It runs for an hour with one small can of pellets (arround 30cl)
There is a detail of the fire going horizontally in the last picture visible thru the vent hole.
Oh!! I made 2 vent holes in the horizontal can so it can add some more oxygen to the burn.
Some Videos
Its visible the fatwood smoke being sucked into the can due to the draft generated by the upgoing hot air.
Some Updates
I made my lunch (soup) on this stove today using a 3 legged traditional cast iron pot.
I had to adjust the air intake reducing the air gap around the burner just a little so the air catches up some speed and this way it blows the flame better.
By the way, the soup is a traditional portuguese soup made with pork meat, several types of sausages and vegetables (onions, potatoes, carrots, cabbage and beans). Called "sopa da pedra" and there's a funny story about it. The "stone soup" is also present in many other cultures. Delicious!!