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This paper aims to highlight the potential and prospects of bio-fuel geysers in South Africa, notably the Shiza Manzi geyser. The geyser is compared to the imbaula and an improved StoveTec bio-fuel stove using the SeTAR Centre heterogeneous stove testing protocol. The geyser gave a high power of 23 kW and an adequate thermal efficiency of 36%, boiling 20 litres of water in an average of 12-minutes...