Tin Can Rocket Stove on Pellets (gravity Fed)

by nunol in Outside > Camping

1734 Views, 5 Favorites, 0 Comments

Tin Can Rocket Stove on Pellets (gravity Fed)

IMG_20200924_103649.jpg

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

FB_IMG_1572883370134.jpg
FB_IMG_1572883388972.jpg
IMG_20200924_094954.jpg

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

IMG_20200924_095018.jpg
IMG_20200924_095123.jpg
IMG_20200924_095127.jpg
IMG_20200924_103649.jpg

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

IMG_20200924_102526.jpg
IMG_20200924_102522.jpg
IMG_20200924_102533.jpg
IMG_20200924_102542.jpg

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

IMG_20200929_124125.jpg
IMG_20200929_124154.jpg
IMG_20200929_125314.jpg

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!!