Japanese cannot spend winter without Kotatsu. Kotatsu is known by some European and American countries, even though they have never used. It was said as the great invention same as Washlet. Kotatsu is wooden table with an electric heater underneath covered by a quilt.
Kotatsu is originally invented by Zen priest in Muromachi Era. The attractive points are the electricity bill is cheaper than air conditioner or floor heating, and it is very comfortable because you can feel warm directly. So it has been loved for long time by Japanese. Kotatsu represents Japanese winter and the happy time with family. A French man, Olivier Caramelle is trying to sell Japanese Kotatsu in Europe. According to the website, he was studying Japanese furniture for 20 years, and he thinks only 1 of 1000 people understand how Japanese furniture is great. It sounds like it is difficult to spread this culture, but he says, about half of European people has habit of taking off their shoes in the house. So he believes it is easy to spread Kotatsu in the world. It costs lots of money if you buy Kotatsu out of Japan, so I hope it will be easy to get this convenient and great invention.
The video by a man exciting with Kotatsu is interesting, so please watch it!