Wood powered portable steam generator.
Everyone knows that the distillation of ethanol is a good idea, though making the fuel ethanol by using the electricity is the nonsense, because it is easier and more efficient to charge the batteries and use the electricity directly, but if you will use a renewable source like wood for example or make a pellets out of used sugar cane straw and power your distillation equipment - then one can make a "real fuel" that can be used to run cars and machinery, including power generators for electricity generation.
Sometimes though people want to be able to make ethanol, as a fuel or a booze in really private conditions in places where simply no any electrical power source, so this kind of steam generator is real problem solution, while this wood powered steam generator was minded as a power source for distillation equipment, the application of this device is not limited by distillation only - it can be used as a heat source for a green house.
The videos above show an example of the steam generator's application as a primary source of heat for the fractional distiller.