After 2 weeks, the metallic round inner part fell from the plastic flute, smelling the way when it whistles for too long. It was fixed in a way previously, which was incomprehensible or reparable. No screw or thread .. Perhaps the metal part of the pipe was pressed in or glued to the plastic version? It could not be repaired anyway. Result of the boiler no longer whistled. Unfortunately, I had the cash not canceled document. And have used it anyway and always had an eye on the boiler. But once looked too late in the hustle and ... the boiler burned.
The plastic is so combustible - and toxic smoke.
The lid also could be difficult to remove and sat too tight.
From a brand like WMF I TOP quality expected. I am so disappointed that this brand promise has not been met and will never buy anything from WMF. The saleswoman in WMF was not qualified. WMF does not seem to be what it once was.