Heat tolerances you say? Let's see if I can give a good idea on what mine are.
Food: I have had spicy food before, but I need either milk or soda near by just in case what I am eating is really spicy (It's worth it though. Spicy food is so freaking good)
Temperature: I am not good with hot summer days. I'd say I am more adapt to winter time.
Hot Surfaces: I am going to say I know when to touch and when not to touch... So I am not quite sure what my tolerance is there.