Rocket Stove
On 2010 taborda sent an email about a plan to build a rocket stove, this plan was more or less followed and we ended up with a nice and light rocket stove that went the whole trip :D
i had the idea of making two stoves, one small (for morning coffee, tea and small cooking) like this simple one: Stove review: http://www.youtube.com/watch?v=pN30_tG7S3A
and another one bigger for larger pans, more like this ones: http://www.youtube.com/watch?v=rpdYq9CFntU http://simplegreenliving.com/cooking-food/rocket-stove-make-one-and-cook-with-twigs/
Rocket stove
a nice video on rocketstove buildding in: http://rocketstoves.org/ and some theory behind it, starts on page 19: http://rocketstoves.org/capturing_heat/pdf/capturing_heat.pdf
Materials
for the bigger Rocket stove we need: - an oil can (or somethig similar, would be nice to have an handle to be carried) of 20 to 25 litters (be aware of the width of the Trailers when designing a new rocket stove for the biketour) - hard gloves to protect your hands - Tin snips to cut the tin barrel (something like this: http://ak1.ostkcdn.com/images/products/P11298418.jpg) - A metal file to smooth off the rough edges - Pliers - rivet gun and rivets (or screws and bolts) - cordless drill (to open holes in the cans, hammer and nail can also be used if needed to improvise)
internal pipe
for the internal pipe we have two option, the first one i'ts the more resistant for long use, but or someone is really lucky to find the materials (in construction sites, old houses, etc...) or we have to buy them
option one: - a 13 cm (4 inches) 90 degrees elbow stove pipe (like this one: http://www.ritzcamera.com/graphics/products/m-28/MP81124028.jpg i checked in a portuguese store and it was about 10 euros, in the internet i can only find crazy expensive prices for this) - a 13 cm (4 inches) stove pipe (that fits the elbow, and at least as long as the can)
on 2010 we got offered from a wood stove shop in england a piece of Stainless Steel Liners for chimneys, it did the job for 2 months (i imagine it could break after a while, but it's light and cheap)
option two - a big oil can and some bits can be assembled together to make the internal pipe (caution to not cut yourself!)
insulation material
for insulation material i find some options also (one cheap but heavier, one less cheap and light, and some inexpensive) we just need to go for ONE of the options:
- Perlite (in this video they talk about using perlite that can be used as a cheap insulator) (we used this option on 2010 - worked fine) can be found in any garden shop
- expanded clay pellets (are expensive, but can be "taken" from the plant pots of large comercial areas) are very light
- ashes, sand or earth (it's inespensive, but heavy, one option would be to always fill the rocket stove with local material we find, but i think this can make the stove break much faster..)
Small stove
Materials
for the small stove we just need:
- two cans (from soup, beans or something similar) one a bit smaller than the other
- some small nuts and bolts (and tools for them)
- a good metal cutter (something like this: http://media.photobucket.com/image/metal%20scissors/whslax1990/AviationShearsSet.jpg)
