Editing DnD Desert Raiders Campaign Heat Dangers (section)

=== Resistance to Fire ===
A character with a spell or effect granting resistance to fire applies this resistance to both lethal and nonlethal damage from hot temperatures. For example, a creature with resistance to fire 5 subtracts 5 from the ld6 points of lethal damage dealt per 10 minutes by extreme hear (and therefore might take 1 point of heat damage, if a 6 is rolled) and 5 from the Id4 points of nonlethal damage dealt. In this example, since the creature ends up not taking any nonlethal damage from the heat, it need not worry about heatstroke or heat exhaustion.