How an engineer in Cameroon developed a formula for recycling oil and designing a stove that can use it in a safe kitchen ...

Does it produce a smell of burning oil? One of the disadvantages ... See video of the used oil stove below: In other related stories on TUKO.co.ke, a talented man successfully constructed a ...

For several months now, Suzanne Noubissie, a housewife in Douala, Cameroon's economic capital, has been swapping her coal-burning stove for one ... tool that uses used oil came from Eric Tankeu ...