Those countries like in the case of the Philippines where coal fuel was not available, people seriously thought of using wood/coconut shell as substitute fuel. Hamada Boiler sold hundreds of wood/cocoshell boiler of this D model in Manila that time. At the highest time, as big as one thousand trucks were carrying solid fuel to Manila from nearby provinces.
Ang Hamada Boiler ay nakabenta ng daan-daang modelo D boiler na pinapatakbo sa pamamagitan ng kahoy o balat ng buko. Nung panahon ng pinakamalakas na benta, mga isang libong trak na galling sa iba’t-ibang lalawigan ang nagdadala ng solidong piyuwelo sa Maynila.