Keeping Warm in the Winter, Japan-Style

3 Japanese tanuki statues covered in snowPoor tanuki: they must be freezing their balls off.

Now that Halloween is all over and done with, it’s time to look ahead at the upcoming cold months. To quote Game of Thrones, winter is coming.

And winter in Japan, especially in the northern parts of Japan, can be unforgiving. Not only are winters cold and snowy, but in lots of buildings Japan there’s very little insulation to protect you from the ravages of winter. Fortunately, there are lots of awesome, uniquely Japanese ways to stay warm and toasty in the frigid winter months!

Japanese homes don’t usually have central heating or cooling, they have little insulation, and double-paned windows that keep the cold out and the heat in are regrettably rare. This is because lots of places in Japan have traditionally been designed to be breezy in the summer, and central heating and cooling is pretty expensive.

There are other theories why Japanese homes are so poorly insulated – that they’re built cheaply to prepare for the inevitable destruction of earthquakes, that they’re poorly built to save big construction companies money – but those are kind of fringe theories.

But regardless of why some Japanese homes are so cold, people have found ways around it. Let’s take a look at the coolest ways to say warm in the Japanese winter:

Kotatsu

No post about winter in Japan is complete without talking about kotatsu. The idea behind kotatsu is both simple and brilliant: it’s a low table with a blanket around the edges and a heater strapped beneath it.The blanket keeps all the heat trapped underneath the table to warm up cold legs.

It’s the greatest idea since eating Cheetos with chopsticks.

KotatsuLooks cozy!

Kotatsu are a great way to keep warm, and forcibly gather the family together in one place. Nothing says “family time” like huddling together for warmth. People even take naps under them, and kotatsu become pretty much become permanent spots for household pets, as exhibited by YouTube superstar Maru:

[yframe url='http://www.youtube.com/watch?v=qQR9BQXj-I8']

Kotatsu are less popular in the northern regions of Japan, where it’s important to keep the entire room, apartment, or house warmed up so that water pipes don’t freeze and burst. But on the main island of Honshu, kotatsu are plentiful.

Space Heaters EVERYWHERE

Since many Japanese households don’t have central heating because of the cost, lots of people rely on smaller space heaters to heat rooms individually. Some households practically have a space heater for every room in the house, but most have at least one for the main living area.

A cat lying in front of a space heaterA space heater with its primary benefactor.

There are lots of different kinds of heaters that people in Japan use; everything from kerosene and oil to regular ol’ electric heaters.

And, once again, your cat or dog will probably use your heater more than you will. How do the animals get all the breaks?

Haramaki

Haramaki originally referred to the armor a samurai would wear around his waist, but that’s so 16th century. Nowadays, haramaki refers to something a little bit different.

Today, a haramaki is a knit cloth garment that you wrap around your stomach to keep your core warm.

A man and a woman posing wearing haramakiPut a bird on it!

Usually Japanese people associate haramakis with children and old people, but haramaki makers have been trying to make it seem a lot more trendy and fashionable. They’ve also been trying to show – scientifically – that haramaki make you a lot warmer, too.

Science!

People who sell haramakis also say that they “promote wellness” as well, doing things like keeping a baby warm during pregnancy, accelerating the processing of alcohol by the liver, and relieving menstrual cramps.

The Japanese love to talk about how important a warm stomach is to staying well.

Whether or not these claims have any basis in science is a little questionable, but that doesn’t stop a haramaki from keeping you toasty.

Hot Water Bottles

Hot water bottles: also available in mini sizes.

Back in the day, obaasan and ojiisan used to have to cultivate trees, cut them down, turn them into charcoal, heat water, pour it into a giant metal hot water bottle, and scald their feet while they slept in order to keep warm. Okay, not really, but hot water bottles have been around for a while, and they used to be a bit more of a hassle.

Nowadays though, hot water bottles are a great way to keep toasty while you sleep. They’re much smaller, cuter, and more manageable than the clunky metal hot water bottles from back in the day. People even accessorize their hot water bottles with covers and the like.

Pff. Kids these days.

Don’t Die

A skull engraved on a tombstone

No, seriously; don’t die. While all of these ways of keeping toasty in wintertime look awesome, they can be deadly too.

According to Japan Probe, something like 20 people die every year in Japan from space heaters when they throw things (clothes, blankets) on top of them and forget about it. Not only that but with kerosene-powered heaters you have to keep a can of kerosene around to refill the heater, which can spill and catch fire and burn your whole house down.

And of course, kotatsu are basically designed to be the biggest fire hazard ever. Who thought “Hey let’s design a heater that’s completely covered at all times?” Dangerous enough to warrant a government warning? You decide.

Don’t even get me started on hot water bottles. All I can say is that most of my family is gone from this world because of it.

Okay, I might be exaggerating a little bit about the dangers of these things. But you should probably nonetheless be careful when using them.
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How do you keep warm in the wintertime? Do you use one of these ways, or do you prefer something else? Let me know in the comments!

P.S. Are you a fan of all of these ways of keeping warm? Follow us on Twitter.
P.P.S. Are you a mutant superhuman impervious to cold, much like the X-Men’s Iceman or another fictional mutant with similar ice powers? Like us on Facebook.


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  • http://www.tofugu.com/ Hashi

    Thank you!

  • http://www.tofugu.com/ Hashi

    “By the way, am I one of the only Americans that makes their own tea by
    hand (as in; getting loose tea leaves, steeping them, and straining them
    for each mug)?”

    Not at all! Here at the Tofugu office we have tea brewed that way almost every day.

  • Rob

    There’s also no mention of those Kairo heat packs, which are quite literally everywhere in winter in Japan and used by pretty much everyone.
    http://www.japanmarketingnews.com/2007/11/kairo-keeps-tok.html
    I’m often seen as crazy for not using them.

  • http://twitter.com/DearestPrincess 秋山由香

    Yes, it doesn’t word at all. I was able to get it work perfectly not long ago (unfortunately by accident) but when I turned my computer on the next day it went back to normal so I don’t know how to fix it. Default input language is Japanese as well. :/

  • Wercochiflado

    what happened to koichi

  • madamada-chan

    Fleece blanket. You can take away everything from me in the winter (yes, I would even willingly give away my phone and laptop XD Not really) but just do not, DO NOT, take my fleece blanket away from me. It’s the most wonderful thing man ever made.

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  • nagz

    you should’ve mentioned tea, my favourite heater :)

  • Its4pillow

    At the risk of incurring your ire by stirring up tragic memories, I must ask: what’s so wrong with hot water bottles? I use mine to help deal with bad monthly cramping.

    Loved the post ;)

  • Sandra03

    I live in the basement of my inlaws’ house, they heat with a woodstove.. while it’s close to my bedroom and computer room, all the heat actually goes upstairs (hot air rises, duh) and leaves the bottom floor freezing cold all winter. there’s a small electric heater in each room so we keep the doors closed at night to keep the heat in.
    the part that sucks is getting up to use the bathroom in the middle of the night and getting up early in the morning… the hallway and bathroom are freezing. hard to psych yourself up to take a shower when you know you’ll freeze half to death getting out..

    i really want a kotatsu, when i first saw one in a jdrama i had to go look it up, what a brilliant invention, even if it is a deathtrap ^_^

  • Sandra03

    or “Robo-toilet” as we tend to call it in my family lol. i want one.

  • http://www.tofugu.com/ Hashi

    Koichi still posts, he’s just usually busy with stuff for TextFugu.com now.

  • http://www.vietamins.com Viet
  • http://profiles.google.com/jonadab.theunsightlyone Jonadab the Unsightly One

    Wait, let me get this straight:  it’s such a warm climate that they don’t need central heating to keep the pipes from freezing, even in February — so, basically, it’s pretty much tropical — but yet they have a bunch of ways to keep warm?

    If I lived in that kind of climate I’d be much more interested in ways to keep cool.

  • Blanca

    I must say that heated toilet seats in Japan are perhaps one of the best ideas ever… that and the kotatsu.

  • Imogen ^^

    I want a kotatsu now, and its hot where i am, but i still want one! 

  • Anonymous

    A couple of years back I imported a kotatsu for myself and my wife for our anniversary. It has really cut down on our heating bills. Granted we live in Georgia, but we live under the kotatsu for a good six months, even though we only need it for 3. In a few years it will pay for itself, so imagine what it’d save you in a northern state.

    As far as safety goes we did buy a power converter (step down) to run it in the US, but technically that’s not needed, we figured we’d just be extra safe. Also, I’m very cautious about safety with it, but all that is overkill, my nieces left it on overnight, and with all of its modern fail safes it was fine in the morning when I discovered it.

    Also, if you ever have a hard time falling asleep it’s a dream to crawl under and fall asleep. In fact it’s easy to lose a weekend under it. Although, when I was in Japan a lady I was talking to warned me that I shouldn’t sleep under it because her Mom said “It will change your blood.” Something might have been lost in the translation. ;)

    If you want a cheap, but equally effective, kotatsu there are lots of guides on building one yourself. I would have gone down that road, but I’m not very wise, and I can’t build anything, so I justified it by “going authentic.” ;)

    I haven’t tried it, but this guide looks reasonably decent:

    http://www.instructables.com/id/Build-an-American-style-kotatsu/

    I can’t recommend having a kotatsu enough!

  • http://www.tofugu.com/ Hashi

    It’s probably smart to be too safe (like you’re doing) than have your house burn down :p

    Great comment! I didn’t know that people built their own kotatsu, very cool!

  • Anonymous

    Here here, I plan to import one of those as well. ;)

  • Anonymous

    They really are super safe. You can’t burn yourself on them even if you tried.

    I’d say the biggest hazard is since the table top isn’t secured to the frame while the hanging blanket is on as small child might get on it and have it slip out from under them. You might think it’s odd that I mention this, but the kotatsu came with a list of safety things, and one was a picture of a kid standing on it with a “no” symbol over it. I laughed at that idea until a few weeks ago when a 7 year old kid came to my house saw the kotatsu and the first thing he said was “Can I get on it?”

  • http://easteban.tumblr.com/ Esteban

    You sir have probably been told about this one before, if not, gladly I mark it here (“and kotatsu become pretty much >become< permanent spots") I couldn't browse through all the comments, tho.

  • Toru

    Warm climate? They still experience snow.

  • atazg

    Man, that would explain the dozens of animal and other shaped water bottles I saw went I was shopping in Tokyu Hands…

  • orangedude

    I’d love to try out a kotatsu. It sounds so warm and comfortable!

  • guyhey

    You don’t even know.

    You can import them, which isn’t cheap, but I can share the details if you are curious.

    Or you can build one. I haven’t done that, but it’s probably a lot cheaper, and just as good:

    http://www.instructables.com/id/Build-an-American-style-kotatsu/

  • http://www.facebook.com/LizAdeniji Elizabeth Fleming

    My coffee table is excellent for the conversion— there’s no reason this cannot be a home-made thing. If fact, you might end up with a safer combination if you found the right kind of heater and fire retardant materials for everything else. It should take much head to make something like that nice and toasty underneath, with the insulating blankets and people’s body heat adding to it.
    I live in the subtropics, or I would build something like this. Maybe when I visit family in New York…

  • guyhey

    You can make your own for fairly cheap. There are guides you can find online. However, the ones you import are incredibly safe. You can touch the heater with your bare hands, and it won’t even come close to burning you. In fact if it is really really cold I’ll touch my feet directly to the heater.

    I haven’t built my own, but this guide seems to be fairly easy to follow:
    http://www.instructables.com/id/Build-an-American-style-kotatsu/

    I also noticed jlist has them for sale, and they seem cheaper than other import options. Sadly, you don’t get a very good selection. I wanted an extra wide kotatsu, and those cost way more than the regular ones. However, it’s worth it when I have more than 4 people wanting to sit around it.

  • Mirth

    I’m still waiting for a manufacturer to pick up kotatsu production in Canada. I bet those things would sell like hotcakes. (Pun… semi-intended.)

    Up here we mostly use fireplaces, blankets, and lots and lots (and lots) of layers. Especially waterproofed ones when going outside, yech. Sometimes electric blankets or heating pads get thrown in the mix. My family also has a bunch of large, microwavable bean bags that we can nuke to heat up and then put in our beds.

  • Jo Somebody

    Ah yes, but the removal of one arm and one leg = less body surface area to lose heat off!

  • guyhey

    It’s true it would be cheaper to build one than to buy one. I bought one because I’m not handy, and having the built in safety features definitely helps. I think you can get them cheaper on jlist than where I got mine, but it’s a smaller kotatsu, and I wanted a full size coffee table version.

    There are plenty of guides online on how to build your own.

  • Jo Somebody

    And the most traditional of all, hot drinks and warming foods!

  • Michael .

    I was doing some research on solar heating projects and ran across a heater design that is popular in other countries but not well known in the US. The primary part of the heater is electric but it is designed for areas that charge varying rates for electricity at night. The heater is lined with ceramic fire bricks and has a temp and timer setting on it. You run it at night (or off peak) to heat the room and heat up the bricks. During peak charge time only the fan runs, blowing air across the hot bricks and using that heat to warm the room instead of using the heating elements! Neato!