Thanks Aidas, I've got some apple trees in the garden...
For those who intend to build a press, I found this :
I'm french speaking!
Boiler : 50 L (13 gal) beer keg, gas heated.
Reflux : 104 cm (41 inches) column 54 mm (2 inches) diameter withh SS scrubbers packing.
Potstill : 40 cm (15 inches) column 54 mm (2 inches) diameter without packing.