Ладно иммунитет, а резист 10-20-50?
A character with a spell or effect granting resistance to
fi re applies this resistance to both lethal and nonlethal
damage from hot temperatures. For example, a creature
with resistance to fi re 5 subtracts 5 from the 1d6 points of
lethal damage dealt per 10 minutes by extreme heat (and
therefore might take 1 point of heat damage, if a 6 is rolled)
and 5 from the 1d4 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.