![KoBiz on Twitter: "#Ondol is a heating system hidden beneath the floor which is popular in #Korea. The name is derived from Chinese characters meaning “warm hollows.” https://t.co/twF4RkBcse https://t.co/em5qO9EoKB" / Twitter KoBiz on Twitter: "#Ondol is a heating system hidden beneath the floor which is popular in #Korea. The name is derived from Chinese characters meaning “warm hollows.” https://t.co/twF4RkBcse https://t.co/em5qO9EoKB" / Twitter](https://pbs.twimg.com/media/DsxrlSvU4AQr94Q.jpg)
KoBiz on Twitter: "#Ondol is a heating system hidden beneath the floor which is popular in #Korea. The name is derived from Chinese characters meaning “warm hollows.” https://t.co/twF4RkBcse https://t.co/em5qO9EoKB" / Twitter
![Daewoo Enertec Alternative Energy Ondol Heating System - Korean Style Floor Heating System - YouTube Daewoo Enertec Alternative Energy Ondol Heating System - Korean Style Floor Heating System - YouTube](https://i.ytimg.com/vi/iDLFfn1LoR4/hqdefault.jpg)
Daewoo Enertec Alternative Energy Ondol Heating System - Korean Style Floor Heating System - YouTube
ONDOL, #Korea's unique and traditional underfloor heating system🇰🇷️] #Ondol, which literally means “heated stone” is Korea's unique and traditional underfloor heating system. Ondol is energy efficient as the stone effectively retains heat.
![10 Korean products I would export to the U.S. (if I had an export business.) #7 Ondol | Eugene is huge! 10 Korean products I would export to the U.S. (if I had an export business.) #7 Ondol | Eugene is huge!](https://yujinishuge.files.wordpress.com/2010/10/ondol1.gif)