We are currently doing a test run on the iStill 100 with potstill column for one of our UK customers. At full power, after only 49 minutes of heat-up time, it started producing an amazing 15 liters of spirits per hour! The need for cooling water during the distillation process? Only 2.9 liters per minute.
Heating up …
iStill 100 performing a test run …
Water consumption …
https://www.istill.com/designstudio/i100
The iStill Blog 
Very interesting. What was the starting ABV of the wash? I think the istill-100 is one of the best solutions for small distillers