Vitolo
Vaporist
The white cloud at top of heater cover is artistic effect, that also disguises the eventual greying that occurs at top of heater cover.Hopefully it's not mold, just a cosmetic defect. A picture for the curious!
I don't think that the wearing on the gong is an issue, if anything it will wear slightly into a better seal. If you are still using it heavily a decade from now and it needs replacing then that's pretty good durability.
Some SSV aficionados, locally order their HC's specifically with a cloud at top of the HC.
I do not order this way specifically, but on open orders, one out of a dozen may have this artistic effect.
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