It took some time, but winter’s chill has definitely settled over Japan. A few weeks ago, temperatures on Japan’s northernmost island of Hokkaido dipped to -25°C, and the western part of the country, where winters are usually temperate, received some unexpected snowfall. However, winter in the Tokyo area has been relatively mild, with daytime temperatures hovering around 5 – 10°C and little precipitation. No doubt those of you in the Northeastern and Midwestern U.S. will scoff at these temperatures, given the recent slew of blizzards those regions have been subjected to.
Here’s the catch though: most houses in Japan do not have central heating are poorly insulated (if at all). Traditionally, Japanese houses were equipped with a central hearth, or irori, which was used for both cooking and heating. However, unlike the wood and coal stoves that heated American homes of yore, Japanese hearths lacked a chimney, which resulted in very sooty rafters and walls. Thankfully, times have changed, although warding off the cold indoors remains an issue.