A rocket stove heater is a stove that features a combustion chamber with a vertical chimney used to burn small-diameter wood fuel. The rocket stove's fuel burns at high temperatures within an insulated chamber, generating heat absorbed by thermal mass before the heat releases.
The high heat and oxygen-fed fire of the rocket stove heater burns fuel quickly, converting almost all the fuel into energy. The heater uses an insulated 90-degree shaped combustion chamber, forcing the fire to burn horizontally at the end of the chamber and creating strong turbulence to feed the fire’s intensity. Owners claim an 80 to 90 percent reduction in wood use utilizing rocket stove heaters instead of traditional metal wood stoves.