Uploaded October 2025 | Updated September 2026, 2 weeks ago

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How did people stay warm before central heating? In this episode, Ken traces the history of home heating, from open hearths and Roman hypocausts (and Korea’s ondol) to the Franklin stove, Rumford fireplace, early warm‑air furnaces, cast‑iron radiators, thermostats, and modern heat pumps.

Public Domain Photos from: Library of Congress
CC BY 2.0 Photos from: Flickr User: Sheila Sund, Colin Park, VillageHero
CC NY 2.5: Algont
CC BY-SA 3.0 Photos from: Wikipedia User: Dzihi, Victuallers, chris 論, Dante Alighieri, Stuuf, Rickyrab, Hautala
CC BY-SA 4.0 Photos from: Wikipedia User: Pascal RADIGUE,
Anastasiya Lvova, PeterEastern, Bkhayll

Assets from: Envato Elements
Music from Epidemic Sound