[Dolores12]

>I'm also wondering if getting used to the cold might result in some form of slight weight loss

Your body burns calories to keep its temperature - 36.6C. Another trick to force your body to burn calories is to drink cold water.

[chownie]

Note that "burn calories" in this context equates to a pretty negligable number, iirc it's ~25 calories per litre of ice water. You can make the same number with a long stair journey or 3 minutes on your bike.

[Dolores12]

lets say you drink a liter of 16.6C water per day. your body will heat 365 litres of water to 36.6C. Energy needed is (36.6 - 16.6) * 4200 * 365 = 30 660 000 joules ~= 7328kcal

its 2-week of intensive workouts for free.