In Japan houses are made of wood. Even buildings in Tokyo, they are still made of wood. Wooden houses mean lots of holes, and incapability to preserve heat inside the house, and a very cold house in winter.
As winter is approaching fast, we have to think of a way to preserve heat inside the house, you know to save the environment, and more importantly -honestly!!- to save our pockets!
A Kotatsu is an ideal solution for this problem. Let me now introduce you to a kotatsu.
As you can see in the pictures, a kotatsu is a table that is covered from all sides with a heavy blanket, and a person can sit and put his legs inside the blankets to protect them from cold. Pretty warm yeah? Not so much before you know that under the table there is an electric heat source that will keep you, and your legs, very warm.
The basic concept solves the problem of using ordinary heat sources in Japanese houses. As I said above the wooden nature of the houses allows cold from outside to be in the house, which will render any heat source you use inside the house useless. But with a kotatsu, the head comes from under the table and stays there as it is protected by this heavy wall of blankets.
Some Japanese also sleep under a kotatsu, which is a very clever idea. But ofcourse, this will raise the chances of catching a cold!
Maybe I will buy one for my own house, you know as a spoil for my legs!!