What is a rocket stove?

The “rocket stove,” so named for the “rocket” sound the user hears when the stove produces a muffled roar at high operating temperature, has been a popular biomass stove with wood stove enthusiasts and survivalists in recent decades.  Rocket stoves traditionally utilize an “L-shape” design in order to direct air and fuel into a combustion chamber.  Air is channeled horizontally towards the “corner” of the “L-shape” design via a Feed-Tube (the Feed-Tube is often referred to as a wood box or fire box).  The channelization of air within the Feed-Tube prior to combustion preheats the air as it nears the combustion chamber beneath and around the fuel, serving to reduce the convective cooling of the combustion chamber that usually occurs via an uncontrolled interaction of ambient air with the combustion area.  Permanent or larger rocket stove designs often feature insulation of the combustion chamber and Chimney in order to prevent air-cooling of the Chimney and combustion chamber and consequent reductions in efficiency.

The efficiency of the rocket stove design is among the reasons for it's popularity.  The rocket stove offers a more efficient consumption of biomass (twigs, scrap wood, wood chips, etc.) than many other wood stoves.  The rocket stove concept involves a flow of air drawn towards the combustion chamber (a draw) by the low pressures created by the high temperatures therein.  


Demonstrations


Our collapsible rocket stove is extremely simple to assemble and get started.