This is an alcohol fuel still, not a whisky still. It is designed for making 20 liters per hour of fuel grade alcohol. While it could be used to make whiskey, it is larger and more expensive (it costs about $700 to build). It takes a couple weekends to make it properly. People interested in energy self-sufficiency will find making alcohol a fun and a worthwhile thing to learn. You can turn thrown-away food into fuel.
This diagram of the Charles 803 still and boiler shows the basic parts.