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How to make a rocket stove from cinder blocks

Wikipedia defines a rocket stove as:

"A rocket stove is an innovative clean and efficient cooking stove using small diameter wood fuel which is burned in simple high-temperature combustion chamber containing an insulated vertical chimney which ensures complete combustion prior to the flames reaching the cooking surface."


What You Will Need

  • 5 Cinder blocks
  • A chisel
  • A hammer
  • A small piece of sheet metal or wire mesh
  • Safety glasses or goggles
  • Paper
  • Dry branches to burn
  • Kindling
  • Matches or a lighter

Chisel Out Wall

To make an access area for the fire chamber you must chisel out a portion of the wall on one of the cinder blocks

  • Don your safety glasses or goggles
  • Using the hammer and chisel carefully remove the front portion of the wall of block #2

Stack The Blocks

  • You must place the cinder blocks on firm level ground
  • Place block #1 so that it is on it's side with the holes parallel to the ground
  • Place block #2 on top of block #1 with the holes perpendicular to the ground
  • Place block #3 on top of block #2 with it's holes perpendicular to the ground
  • Place block #4 on top of block #2 with it's holes also perpendicular to the ground
  • Place Block #5 standing on it's end so that the top hole lines up with the cut out for the fire chamber
  • Place sheet metal or wire mesh in the top hole of block #5 so that it is in the middle of the hole parallel to the ground.

Light It Up

I found it easier to move block #5 out of the way in order to light the fire.

  • Place some paper and small kindling in the fire chamber and light.
  • Once you have a sustainable fire in the firebox then place block #5 back into position.
  • Place sticks into the opening on top of the metal plate.

Some Thoughts

I built this last weekend, it only took me about 30 min. Be very careful when chiseling the cinder block, I ruined one. It was a cold day about 40F so the updraft wasn't all that great. I also didn't have very dry branches around me so I eventually resorted to some plywood strips I had lying around. Once I got a strong fire working in the chamber it worked very nice wellI was able to boil some water in about 20 min or so.


  • ISBN 0966373839
  • ISBN 1903998727
  • ISBN 0966373820

Amazon's Related Products

  • ASIN B005GQZ4O0

See Also

External Links