Salutations All_Day_J,
I guess I'm overwhelmed...
Still Overwhelmed? It's not just "pages of info", try pictures instead if you prefer!
Here are some more by the way:
Call it variations on a theme.
...Teflon ss and aluminum...
It may not have seemed obvious on the photographs i previously refered to but i guess it should help to know that power to the heater element actually passes through a
series-connected over-heat protector... This information was treated textually and graphically before, but i understand far too well how difficult these details prove being hard to find sometimes. Not to mention the board's own software modifications killed many linked references to other threads a couple years ago... The same goes true about "gassing off" i presume.
Simply consider the HerbalAire's v2.1 over-heat protection was designed to cut the supply of electric power to its physically-attached (and thermally-coupled) 50 Watts heater assembly above a safety-margin temperature. I figure this sort of heat-sensitive fuse-shaped device would become an "open-circuit" after an over-heat event, essentially, even before any of the mentioned materials become a potential source of concern. Well, at least that's what the v2.1 implementation appeared to indicate when i peeked into it.
Now down below that's a photograph of my v2.1:
Which is a perfect illustration of the broken links it turns out...
So please take note we yet have to see equivalent information relatively to the newer versions, though i'd expect future heat-exchanger assemblies will just continue to include an overriding time-tested protective fuse. Which is designed to specifically address "gassing off" issues to begin with...
That is one part of the design which feels most solid: synthetics are made safe by making sure power to the heater is interrupted physically in case of trouble, no software glitch can possibly cause those materials to exceed their respective safe working temperature ranges. As a matter of fact, if it's a fuse i'd suppose it needs to be replaced at the factory by a technician once it has tripped as a result of excessive temperature.
In my opinion most people naturally perfer glass over teflon simply because it renders reclaims more convenient and look doesn't change through time. Also, i recall enjoying the view as well...