Heat Immune
From Flexible Survival
Heat does not bother you. While fire based attacks will still harm you, environmental heat will not. Jungle planets, volcanic planets, no sweat for you. Passive fires(not being wielded as a weapon) also deal no damage to you.
Warning: The sun can still melt you. Don't push it.
Cost in chargen: 2 Perk Points
Cost after chargen: 20 XP