top of page
Production of Insulating Rocket Stoves
Rose with insulating rocket stove.jpg

Insulating Rocket Stoves are Highly Energy Efficient.  In Rwanda, the first ever, 2-piece insulating rocket stove is shown boiling water with no smoke.  Because the pot fits down inside, the firebox burns very hot, like a furnace, burning up what would be smoke.  The stove is also highly energy efficiency because the bricks are 50/50, powders of clay and charcoal.  The charcoal burns out, making the bricks insulating.  Most other kinds of stoves have a gap between the stove and a cook pot that sits on top.  So, a lot of heat energy is lost and there's smoke. 

Go
here to see the stove boiling water using remarkably little, renewable biomass fuel:  leaves and sticks.  The stove will be affordable to those of lowest income when produced by rural potters, paying for itself quickly in the savings of time and money.  Prevent respiratory illnesses!  Save the forests!         

image.png


These wooden molds are for the bricks of the base and the bricks of the upper liner.  The molds of the upper liner are adjustable in width for upper liners of any size, so cook pots of any size can be used.

Mold for upper liner.jpg
Bas bricks just molded.jpg

For these bricks of the base of the stove, the outside is hollowed out​.  Because of this, the bricks dry faster and fire faster.  Note that the thicker the brick, the longer the firing time at maximum temperature.  Hollowing the outer part of the brick out also makes them easy to handle, with one hand rather than two.

The protractor and angles shown are among the most valuable tools of the carpenter who builds the wooden molds of the stove.  These help in deter-mining the angles of the outsides of the brick.  For more description, see the article of this link, How to Make an Insulating Rocket Stove and Why.

Protractor and angles for wooden molds of stove.jpg
Stove with base of common brick.jpg

Insulating rocket stoves will be even  more affordable when the base is built out of common red brick.  Here's a video of the stove boiling water with no smoke.  The base can be completed with a plaster, made of a mix of mud and sand. 

image.png
A Simple Press can be used for the forming of biomass disks as fuel for the insulating rocket stove.  For example, farmers could generate income by producing fuel disks of agricultural waste.
Screenshot press of biomass disk.jpg

Transition to Electricity and Non-Solid Fuels.  Insulating rocket stoves can be easily adapted for use of electricity and non-solid fuels. Once these adaptations are implemented, the stoves are expected to have profit margins that will attract investor interest, for production and sales in upscale markets.

Market Interest and Production Approaches.  While biomass-burning stoves made by low-income potters are less appealing to entrepreneur investors, the newly adapted and portable versions of the insulating rocket stove offer better investment prospects. The potters in whatever location can create and demonstrate prototypes based on electricity and non-solid fuel adaptations. Showcasing the prototypes will provide an opportunity for entrepreneur investors to undertake large-scale, localized production, helping to meet the huge demand for energy-efficient cookstoves.

bottom of page