The Jet-Flame was developed from combustion concepts used in fluidized beds and TLUDs.
“In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials (sand, limestone etc.) through which (under air) jets of air are blown to provide the oxygen required for combustion or gasification. The resultant fast and intimate mixing of gas and solids promotes rapid heat transfer and chemical reactions within the bed.” https://en.wikipedia.org/wiki/Fluidized_bed_combustion
Top Lit Up Draft
The TLUD uses under air flowing up through the fuel to transport wood gas into the hot layer of charcoal and flame above the fuel assisting more complete combustion efficiency.
Cleanly Starting the Jet-Flame
High velocity under air jets blow up into the lit charcoal placed on top of small sticks of wood. When the charcoal and wood are on fire, long pieces of wood are pushed into the made charcoal to start a Rocket Jet-Flame without making visible smoke. The sticks of wood are burned at the same rate as the continual production of charcoal creating a cleaner combustion process related to a fluidized bed and the TLUD.
Charcoal over wood is lit.
The charcoal becomes superheated with jets blowing up into the pile.
After 30 seconds, long sticks of wood are pushed against the burning charcoal creating flame.