Conclusion: do not go! Stench without end. During assembly I got a headache. Had him for one week on the balcony and also with vinegar, etc., as recommended here "treated". It has nothing helped, he stank still bestial.
-> This device has not lost in the nursery! Thanks Amazon, for the smooth return.
(And also on the terrace, I would not ask me, because he stinks very clearly perceptible!)
(I have now bought the "Made in Germany" heater Rommelsbacher Rommelsbacher IW 604 / E changing table radiant heater. Super!)