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Rocket Stove Part 1

Posted by on August 6, 2013

As I do more and more of these the more I’ve noticed that my latest “Can do”s are more survival / prep oriented.

This one is part of my JIC (Just in Case) also known as SHTF on other sites.  It also stems out of an “I’m sick of paying ridiculous electricity prices and i suspect my stove is a large culprit” mindset .

That being said this entry is about the Rocket Stove.  A rocket stove is a furnace that is very simple yet extremely efficient.  It is simply an L or J shape made out of brick, steel, dirt, or whatever you can use to fashion the shape that won’t get consumed in the fire. The stack is typically insulated to keep as much of the heat as possible from escaping.  This creates an extremely hot flame and stack which forces the airflow to  increase dramatically as well as burn up the remaining smoke particles and volatile gasses.  This produces a clean heat that is safe to use for a multitude of options.

It can be used to heat water (also as in hot water heater), your home, for cooking, electricity production, woodgas production, and many more.  My plan is to start with it for cooking and then move into electricity and woodgas production.

I was unsure what size of a stove that I needed to make and I HATE building multiple copies of the same concept so I chose to make a dual chambered rocket stove that can be converted to a triple chamber stove at any time in the future.

Here are a few pictures of my build.  I went with an old water heater as the outer housing and cut it down to 19″ in height.  It has a 16″ diameter and has quite a large amount of space.

Housing and larger tube.


Traced the tube on the side of the housing where i needed to cut. Be sure to match the angle at which the pipe will rest inside the housing or you will find the hole too small.


Hole cut out with a plasma cutter but can also be done with an angle grinder with a cut off wheel or a torch.


Cut the tube at a 45 degree angle so I could flip it and make a 90 degree L shaped tube. The cut was too wide for the band saw so I used the plasma cutter.


Test fit.



All welded up.


Tube and pipe for the 2nd chamber. Notice the Rotors in the background that will be used for the burner tops.



2nd hole in housing and hole in tube cut. Notice the hole in the housing is wider than the tube. This is to allow a greater insertion angle.



Test fit.

It was getting late and I needed to rush the next few steps so I’ll have more pictures later in part 2.  Here is an early preview for those who are interested in the test run of the stove.


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