Cleaning the Devialet

[Axel]

I've never used anything other than a microfiber cloth and if it's really bad some cooled down boiled water. No detergents, soap, glasscleaner or anything.
I do wonder where those spots come from though.

Maybe due to the heat?

Could be of course, but I doubt it. Mine has never been above 50 degrees Celsius.

I use plain water and a microfibre cloth which is advertised as a glass cleaning cloth.  I would be keeping an eye on those spots and it wouldn't hurt to let Devialet know as it may be a known problem.