EDIT DAMN
@Ratchett !!! Do you live here or what?
You scooped me again!! I either have to start typing faster, refreshing better or stop sitting here with my nano in front of me while I pontificate! Seriously though.. thanks for all your great input!
No one is going to disagree that high temps are more harmful than lower temps. The question is do the settings for the enano have temperature variances between units? And the answer is yes. At setting 7 I cannot char a bone dry load and 6 is not satisfying on my enano. This is handy information if you are under the impression everyone's 7 on the dial is the same temperature because it is not.
This info also makes it clear that you have to tune your nano to how it feels good to you not by some number on the dial.
There are definitely temperature differences between individual nanos. It has been discussed previously here and there a bit through this thread.
Some of this is due to changes in production over the past year and a half. From what I can tell, the newer detachable cords run a slight bit cooler. I had started figuring this was the case soon after they started being used and the particular one I had an opportunity to try was about 1/2 setting cooler compared to my older nano (or could be a bit more or less as there were certainly other unmeasured variables in play).
All of the other variables mentioned above also matter. Electricity at your receptacle definitely makes a difference - sometimes more than others. I've used my nano at a few different locations, and each seems a bit different. Surge suppressors and extension cords have an effect here, too. I'm sure voltage step-downs add even more inconsistency.
Obviously, dryness of material, how you draw, dry vs. wet and other factors come into play too - as well as room temp and air circulation (as I think tweak mentioned), and other things I'm sure.
Add to all of this that analog dials, like the one on the nano, will usually have a variation in how much current they let through at whatever setting. And, the knob part itself on the control is not exact in how it reflects power/temperature. There is a smaller toothed knob under the plastic part you use. The teeth can be off a little from dial to dial, and the numbers/dashes we use may not be applied in exactly the same position on every one.
While this can create some confusion (especially with comparisons here in the thread) it's not uncommon for most vapes, nor is it a bad thing - actually IMO quite the opposite!
I used an EQ for a couple years before I got the nano. Similar discussions were common, as well as the fact that the temp shown on the lcd screen may not be your actual vaping temp. I (and most others) came to the conclusion that it doesn't matter as long as your unit stays consistent. So my setting 7 on nano dial (or 200 C on EQ screen) may not be the same as others, but as long as that setting is the same every time I can get consistent vaping results. Since vaping itself is so subjective and so many other variables are involved, there will always be individual preferences on temp settings that will vary a bit anyway.
Why is this "not a bad thing"? Part of the problem here is caused by the fact that the dial is so sensitive. Just a small nudge in either direction will usually give a noticeable result. This means we have a good bit of temp control, which I've found to be very beneficial in use. It's easy to adjust only a tad for different strains, moisture content, bubblers, room conditions, thickness/smoothness of vapor you're looking for, etc, etc.
If you'd like your dial settings to be different than where they are, it isn't hard to change them. I noticed my settings shifted and 0 wasn't exactly my "off click" spot when I got my nano back after some updates (including a new cord and dial). Andy suggested I move it to wherever I like. You can pop the numbered dial/knob part off pretty easily, then put it on closer to where you want it. Closer but not necessarily exactly. There are teeth on the internal knob and teeth on the numbered dial/knob we use and they have to mate up, so I'd suggest you don't try to jam it back on if the teeth aren't in mesh. I also wouldn't do this too much as it is bound to loosen things up a bit every time you do, and eventually the plastic knob probably wouldn't stay on as well. If you're careful you can use the E-Pik to pry the outer knob off without bending it or damaging the dial. Then just line it up exactly where you want it, and move a little one way or the other to align the teeth if necessary. If you wanted to you could set it up so it combusted at setting 3 every time, or 10 barely gives vapor - or anywhere in between! Just another cool thing about the nano.
Is this thing fucking amazing or what??
EDIT #2
... That said, there is also a difference in how far the adjustable basket is placed from the heating element. For reference,
@flotntoke pointed out that the notched flat part of the metal E-Pik is designed to not only stir your herb, but also as a depth guage for the screen! (I'll try to get some pictures later to explain).
Hell, I haven't charred my ABV since the first day or two when I accidentally turned the temp dial up to 10!
Yes! The E-Pik is fucking amazing, too!! Thanks for the acknowledgement on the E-Pik depth setting, but not entirely sure that was mine. Might have been, but honestly don't remember if I came up with it or re-mentioned it. Damn vapor clouds my brain!!
Including this one and knob removal I think I'm up to 6 or 7 different functions. It's like the swiss army knife of vaping. Plus, I still think it looks cool hanging on my glass - no matter what anyone else says.
For what it's worth, I can char a load that's been hit a few times at 7.5 if not very careful. 8.5 will scorch almost every time right out of the gate. I do like to keep my stash very dry, though. Learned here years ago that dry meds vape better than moist. Moister has its benefits too I guess, but I have my routine and habits now and don't usually shift too much on things like this.
EDIT# 3 Think this concludes my chapter for the day!