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2000 year old radiant system.

gennady Member Posts: 839
The day before yesterday I was at Masada in Israel.
These are photos of bath with radiant floors and walls.
Hot air was fanned under the floor and in ceramic pipes in the walls.



  • Steamhead
    Steamhead Member Posts: 16,832
    That's called a "hypocaust", dating back to Roman times. The heat source was a fire, probably wood-fueled.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
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  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
    Yes! @gennady, my wife and I were there in 2008. Its pretty interesting isn't it?

    Didnt Korea have something similar they called "ondol" but fired with soft coal or something?
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!