Congratulations! You now have one of the most comfortable heating systems in the world. Radiant heating dates back to before the birth of Christ. Its roots have been traced back to Korea and were being used for delivering radiant comfort in a system called Ondol. Back then, they used a series of tunnels with a wood-burning hearth at the inlet to the tunnel. The smoke from the fire wafted though tunnels constructed immediately below the homes floor. The hot smoke transferred its heat through the stone floor to help heat the home. The smoke eventually rose up through a chimney and exited the home.
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