Heat sustainable

Heat sustainable
 

What adjective would you use to depict a person who feels comfortable even in high temperature environments, such as Thais and Sahara Desert people? And people who can dispense with air-cons in the summer.

??He is very heat sustainable??

Are there better expressions?

heat tolerant
tolerant to the heat

The heat doesn't bother him.
He tolerates the heat.

heat acclimated
acclimated to the heat

He is acclimatized to the heat.

Thank you~