You can actually preview that in the armory bench before crafting. On pieces that have a higher bonus you can see the bars reflect that
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Yes, that’s because that is actually accurate… they standardized most armor to only give 1 bar of hot or cold protection. You’re right that some of them internally give more points since the bars represent intervals (1-4 points = 1 bar, 5-9 = 2 bars, 10-14 = 3 bars… etc…), but the ones showing 1 bar all offer quite a miniscule value.
“Real” temperature resistance on armor is now consolidated to special pieces where there is absolutely no mistake whether they offer protection or not, things like the Dragonscale Helm from Red Mother for example:
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That’s exactly how it works, the bars merely represent those numbers like I described above :slight_smile: But internally that number exists and yes, they are cumulative from all equipped items and that’s how the thresholds work as well, they are merely represented by bars.

I agree that maybe these bars shouldn’t be completely linear and the first 2 bars at least should have a finer resolution so you can distinguish between basic armor pieces that offer different protection.

Obviously that becomes apparent as you stack up the whole set as your character’s bars reflect the total amount on the status page, but yes for that you need to craft things and equip them. To be fair I don’t see this as a big issue when they don’t even show us the stats of armor before crafting in a bench… at least temperature is shown to some degree.

The bottom line on this is that they are shown and while for small values it’s not that accurate, those values are just that… small… so people usually use other means of combating temperature than trying to craft full sets of armor for it like in the past - There are many foods that lower / raise your temperature, there are effects like torches or other heat / cold sources, there are those unique armor pieces that give you protection etc.
I understand what you’re talking about though, I remember too when I had to have 2 different armor sets crafted for cold and hot areas, but those days are just gone. (even though I preferred that as well)

We had a thread the other day about various temperature protection means, maybe you can find some good ideas there.