Ondol: Korean Underfloor Heating | Hackaday

A person of the quite a few elements of the fashionable entire world we generally consider for granted is the quite technological innovation that retains our lodging at a habitable temperature. Examples of this include things like centralized heating units making use of incredibly hot-water circulation, or blown air ducted to several rooms from a central furnace. Certainly in Europe, after the Romans shipped out, and in advance of the industrial revolution, we have been fairly cold until an individual lit a hearth in the room. Each and every home. But not in Korea. The Ondol heating concepts have been made use of continually from about 5000 BC to only a several a long time ago, holding your average Korean countryman awesome and toasty.

Getting reported that, the sophistication has enhanced a bit. At first, the concept was to only heat up a bunch of rocks in the hearth, and bring them indoors, but Ondol immediately turned aspect of the making by itself. As will be observed from the video embedded underneath, the household sits on major of an elaborate double stack of serpentine channels, that circulate the very hot combustion products from the furnace as carefully as possible, slowing down the gases and making it possible for their heat to transfer into the composition of the floor, and then radiate into the room above. It does bear much more than a passing resemblance to the Roman hypocaust program, ruined illustrations of which can be found all over the United kingdom and Europe. The skill demonstrated in the movie is sizeable, but should definitely be an costly establish reserved for the most culturally mindful Koreans who would like to stay in simpler (and significantly less busy) locations in their state.

Maybe for the extensive majority of us, this sort of detail is not feasible, and we’re extra probable to reward from a much more centralized tactic, potentially utilizing squander warmth from data centers or geothermal activity. (See: Iceland)

https://www.youtube.com/look at?v=WUvPGZzspP0

Thanks to [Keith] for the idea!

Luis Robinson

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