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SIMULATED, NOT MEASURED. A concrete village-fabricable insulated rocket stove with pot skirt and 2.5 m chimney is specified and computed from first principles: 35.0% efficiency vs 12.0% for a three-stone fire, daily fuel 1.202 kg vs 3.505 kg (65.7% saving), chimney draft 10.75 Pa, and a cook PM2.5 24-hour average of 100.17 ug/m3, still 6.68 times the WHO guideline, stated honestly with what would have to change.
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William Alexander Aldred (2026) studied this question.
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