TLUD Stoves
TLUD imageThere are many variations on the TLUD, but the biggest distinction is between natural draft TLUDs and fan-forced TLUDs.
The TLUD operates as a gasifier by creating a stratified pyrolysis/combustion regime with four basic zones: raw biomass, flaming pyrolysis, gas combustion and charcoal combustion (see diagram to the right, modified from Anderson & Reed, 2004).
The charcoal can be retained if it is removed at the proper time and quenched.