Published: March 24, 2020 - by Dan Holohan

Categories: Hot Water


 Jean Simon Bonnemain created the very first hot-water heating system in Paris in 1777 to heat chickens. In this video, Dan Holohan shares how this system worked and how it led to gravity hot-water heating systems.

Want to learn more? Read Dan Holohan’s book Classic Hydronics: How to Get the Most From Those Older Hot-Water Heating Systems.