I set fire to helmets in my kayak. Boat sank. You can't have your kayak and heat it.
There was once an Eskimo who felt the cold and would not go outside unless forced to....
After a rather lean period, his wife explained that unless he brought home some food, oil and other items he was going to be on "short rations"
So he came up with the idea that a platform on his canoe with a fire he could probable cope
Unfortunately the fire caught the wooden frame supporting frame and spread to the whole canoe... the frame collapsed and he tragically drowned
Thus proving that you can't have your kayak and heat it too