Is there a word or two words that describes a person who loves to be in a very cold environment (for example, below 20°C or 68°F) and dislikes temperatures that are not very cold?
Cryophilic is the only word that comes to my mind:
Having an affinity for or thriving at low temperatures.
The antonym is thermophilic.
Actually, I had another word after searching for a while - the word is - Psychrophiles
(Just in case any one want other alternative)