Warmth drains slowly at day and quickly during the night. Once empty, every tick chips off some of your health, making fires imperative for survival.
It's advised to not stay too close to the center or the player can start taking 40 damage every 5 seconds from burning.
The Big fire lasts longer than the normal campfire. It burns out (disappears) after 6 minutes.
Like all other fires, the big fire can be used for crafting cooked meat, cooked fish, bottles, wells, water bottles (by melting ice cubes), dragon helmet, dragon sword and super hammer (and Chrono Quests items).