The first unit has been running 10 minutes, then steam production stoppage and an explosion in the unit! So a big fear. Beautiful reaction after sales service that returns me one immediately. The 2nd unit is not working. A lot of noise and very little vapor emissions despite prolonged trial. After-sales service repays contacted me without difficulty. Too bad ... Conclusions: In view of the reactions expressed right here it looks like a lottery and those who have no chance pulling the wrong numbers. 5 stars anyway after-sales service for their interventions (understanding, ease and speed).